Star Treks: Christina Applegate

Samantha Who?

Christina Applegate, who has been in the business since she was four years old, is returning to television with a new sitcom called “Samantha Who?,” premiering Monday, Oct. 15 at 9:30 p.m./8:30c on ABC.

Let’s take a walk down memory lane to see the highs (Emmy wins, Tony nominations!) and the lows (a Jessica Simpson music video?) of Christina’s 30-plus year career…