The scene pays tribute to long-time friend of the show, the late Stephen Hawking, who died earlier this year.
I'm a big fan of The Big Bang Theory. So I figured I'd share the tweet. Stephen Hawking appeared on the show several times, and from what I understand really liked the show.
funny thing is for me, is I watched the deleted scene, but haven't seen the episode yet. I have about 7 of them stored on my DVR.
I save them for rainy days where I can't exercise outside. I'll do my elliptical to The Big Bang Theory. So despite being my favorite TV show on right now, I'm not caught up.