Johnny Galecki is probably the best-known Roseanne veteran to have appeared on The Big Bang Theory, but he's far from the only actor to pop up on both shows.

A new theory promises to simplify our approach to the universe's earliest moments, but some cosmologists say further ...

Jim Parsons is known the world over for his portrayal of Sheldon Cooper on The Big Bang Theory, but before joining the sitcom ...

Fans have grown curious about Jim Parsons and his husband, Todd Spiewak, who have been married for over eight years. Parsons ...