Kevin Sussman says actually working in a comic book store prepared him to star in "The Big Bang Theory," but not its new sci-fi spin-off.

HBO Max's 'Big Bang Theory' spinoff 'Stuart Fails to Save the Universe' is a creative take on an otherwise tired franchise.

Kevin Sussman reprises his role as the awkward comic book store owner, who comes into possession of a dimension-hopping device that could destroy all of reality as he knows it.