Plenty of geek legends have made cameo appearances on The Big Bang Theory, but it took this Lord of the Rings star to leave Mayim Bialik speechless.

Mayim Bialik has finally addressed whether or not she might make an appearance in "The Big Bang Theory" spin-off.

One of the longest-running sitcoms in US TV history is ending after 12 seasons. The Big Bang Theory, which has had more seasons, more episodes and an even longer run than Friends, will air its ...