Watch The Big Bang Theory Online: Season 12 Episode 23

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What news did Sheldon and Amy await?

On The Big Bang Theory Season 12 Episode 23, the pair were waiting anxiously to learn more about something. 

Meanwhile, Bernadette and Wolowitz left the kids for the first time, and things took a hilarious turn. 

Elsewhere, Leonard and Penny tried to keep a secret from their friends. 

What was it?

Leonard Learns the Truth - The Big Bang Theory

Finally, the gang traveled together into an uncharted future. 

What awaited them?

Use the video above to watch The Big Bang Theory online right here via TV Fanatic. 

Catch up on all your favorite shows and reviews and join in the conversations with other fanatics who love TV as much as you.

Paul Dailly is the Associate Editor for TV Fanatic. Follow him on Twitter.

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The Big Bang Theory Season 12 Episode 23 Quotes

Sheldon: The only drug I need is the endorphins pumping through my brain in anticipation of our victory.
Amy: Well, technically, anticipation wouldn't be mediated by endorphins as much as dopamine but, y'know, you've been up all night so I'll give you that one.

Penny: Leonard? Coffee?
Leonard: Black and strong like Luke Cage.
Penny: I'm too tired to even be disturbed by that.