The Big Bang Theory 5×23 Promo/Preview “The Launch Acceleration”.

The Big Bang Theory 5×22 Promo/Preview “The Stag Convergence”.

The season 5 finale episode of “The Big Bang Theory” will be airing on May 10th from 8:00-8:30 PM on CBS!

Wolowitz (Simon Helberg) makes his final preparations to launch into space.

Some new scoop about Penny/Leonard on “The Big Bang Theory” has been revealed by Spoiler Chat!

Jessica, in Miami: Any Big Bang Theory info? I am sooo sick of this back and forth with Leonard (Johnny Galecki) and Penny (Kaley Cuoco)!
We are right there with ya honeychild and apparently so is Big Bang honcho Chuck Lorre! When we caught up with Lorre we made sure to ask what’s coming up for our favorite beauty and the geek couple and he said this of their future: “That relationship is going to have to find its way forward or get out.” Sounds like it’s going to be all or nothing people! Which way are you hoping the electrons will turn?

The Big Bang Theory Season 5 Episode 19 Promo/Preview “The Weekend Vortex”.

Check out “Extra’s” outtakes with Mario Lopez on the set of “The Big Bang Theory,” with cast members Kaley Cuoco, Johnny Galecki and Jim Parsons!

The Big Bang Theory 5×18 – “The Werewolf Transformation” Promo

“The Vacation Solution” — When Sheldon is forced to take his vacation, he goes to work with Amy in her neurobiology lab. Meanwhile, Bernadette wants Howard to sign a pre-nup, on THE BIG BANG THEORY, Thursday, Feb. 9 (8:00 – 8:31 PM, ET/PT) on the CBS Television Network.

To mark its 100th episode, The Big Bang Theory is trying a first — and it has Kaley Cuoco slightly nervous.

“The episode is a little different from what we’ve done. It plays a misguided trick on the audience until the end, so people might be confused, but it’s very well done,” she tells TVGuide.com. “I hope people like it! The audience that we shot in front of loved it, so that’s a good start.”

Titled “The Recombination Hypothesis,” the milestone episode centers on the relationship that started the hit series: Leonard (Johnny Galecki) and Penny (Cuoco). While calling back to the pilot — when Leonard first laid eyes on Penny, of course — the installment will explore a possible reconciliation between the two after he asks her out to dinner. The promo, as seen below, shows the former couple, who broke up in Season 3 when Penny didn’t return his “I love you,” locking lips — but that may or may not be real.

“It’s one of those what-ifs,” Cuoco says. “We see what they’re both thinking a little bit and what everyone’s feeling. They’re both kinda like, ‘If we do go on this date, what will happen?’ They both build it up in their minds and then you find out in the end what’s really going on, but there are definitely a lot of questions throughout. It was extremely smart and well-written and witty. It’s a slightly different angle, and after five and a half seasons, you have to take some chances.”

Because of the various scenarios floating around in their heads, nothing really happens in the episode until the end reveal, Cuoco says. That will set up the following episode, which will offer more insight into whether Penny and Leonard get back together. “They’re not done,” Cuoco teases. “The dinner is going to be a good jumping-off point to what they’re going to start and try doing.”

With Penny having drunkenly admitted to Raj (Kunal Nayyar) that she regretted breaking up with Leonard, would it be fair to assume that she wants to start dating again? “I think even if she wants to, there are a lot of things to [consider] and it’s definitely not easy for them to just start dating again,” Cuoco says. “Their friendship is finally going well. I think what people can expect is that they’re a little older now, slightly more mature, so there won’t be some crazy, horrible drama. They each understand where the other stands.”

Still, Cuoco — who does not know the writers’ plans for Leonard and Penny — believes that it will “take awhile” for the duo to work everything out and truly reunite. And when they do, she hopes it’s for good.

“I do hope they end up together. I don’t see the show ending any time soon, so it would probably be awhile down the road,” she says. “I enjoy the back and forth. It’s extremely realistic, especially when two people live next door and have dated and have loved each other. You break up and you have to deal with your friends and think, ‘I don’t know. I may still love this person.’ Leonard is very special to Penny and vice versa. I think they foresee that this could be a life-changing relationship, but I think that’s also why they’re moving slowly with it and are looking back and ahead.”

As far as looking back goes for Cuoco, that’s one thing she doesn’t want to do — when it comes to the pilot at least. Executive producers Chuck Lorre, Bill Prady and Steve Molaro re-watched the pilot before writing the 100th episode, but Cuoco made sure to steer clear of it.

“Oh, no. I’ve seen that thing way too many times!” she says. “It’s a great pilot — I’m so proud of it and I love that [this episode] takes us back to it— but I can remember every outfit I wore in that. I don’t need to see that again for a while! Maybe by the 200th!”

TVGuide.com

“Our whole universe was in a hot dense state, then nearly fourteen billion years ago expansion started. Wait…”

We won’t sing the whole song for you (although we’re proud to say we can) we just wanted to get you pumped up in anticipation for tonight’s 100th episode of The Big Bang Theory! We interviewed our favorite geek-chic cast at their 100th episode bash and we’ve got all the scoop on tonight’s “quirky” and deceitfully fun plot twists…

Creator Chuck Lorre revealed that the audience can expect to see an homage to the pilot in tonight’s episode. “Well, we’re kind of circling back to where we started with Leonard and Penny. That romance is where we started and it felt right to kind of come back to that in the 100th episode.”

There are plenty of small touches throughout the episode that are going to make even the most devoted BBT fans feel appreciated. Fun fact: When Leonard comes in to ask Penny on another “first date” she is wearing the same shirt as the pilot when he first laid eyes on her across the hall. Awww!

“The writers wanted to do something special for the 100th and I think they accomplished that,” the always-adorable Kaley Cuoco told us. “It’s like one we’ve never done before. It’s kind of a mind game. You won’t figure it out until the end.”

Golden Globe nominee Johnny Galecki echoed her thoughts saying there are a lot of “layers” to this episode. “There’s a big twist, a bigger twist than I think we’ve ever done on this show.” Galecki continues. “It’s a departure for us, there’s a lot of nearby parallel universes and fantasies.”

MORE: Vampire Diaries Star Teases Tonight’s Episode: “There Will Be Blood!”

Melissa Rauch gave us more of an explanation: “It’s kind of a journey with Leonard and Penny and revealing what may happen with them and the rest of the cast is looking on.”

Keyword here being “may.” Let’s put our speculation caps on, shall we? We’re guessing that this episode is going to feature some alternate parallel universe in which Leonard and Penny explore their feeling for each other but in the end it’s not the reality that we’ve been watching for the past 100 episodes. Deep, huh?

But if Leonard and Penny are going to be out on another “first date,” what is Sheldon going to be up to? Fixating on a life-size cardboard cutout of Spock of course!

“I think Sheldon is up to being typical Sheldon; he’s not making any great strides in that episode,” Jim Parsons tells us with a smile. “I spend a decent amount of time playing a certain board game with Wolowitz and Koothrappali and it was a nice just “staying the course” episode for me.” And after the excitement and perfection of last week’s first Shamy kiss, fans will probably be all right with Sheldon’s normal neurotics.

Whatever happens in tonight’s episode is sure to be a memorable experience and something that everyone will be talking about tomorrow. Galecki sums it up: “I can tell you it’s one of my favorite episodes. It might be our proudest moment.”

Take a gander below at this sneak peak clip of Leonard and Penny on their second first date from tonight’s episode!

Make sure to check out the 100th episode of The Big Bang Theory tonight at 8 p.m. on CBS!

EOnline.com