SAN DIEGO, CA - JULY 19: In this handout photo provided by WBTV, (L-R) Surprise guest Johnny Galecki and co-creator Bill Prady at THE BIG BANG THEORY's Comic-Con panel session held at the San Diego ... more 
SAN DIEGO, CA - JULY 19: In this handout photo provided by WBTV, (L-R) Surprise guest Johnny Galecki and co-creator Bill Prady at THE BIG BANG THEORY's Comic-Con panel session held at the San Diego Convention Center on July 19, 2013 in San Diego, California. (Photo by Mike Yarish/WBTV via Getty Images) less 
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Sat, Jul 20, 2013 12:00 AM EDT