Thomas Middleditch And Annaleigh Ashford Star In 'B Positive' Premiering Tonight At 8:30

Could you use a little positivity? Tonight CBS delivers some with the debut of the new series, B Positive, starring Silicon Valley's Thomas Middleditch & Tony Award-winning actress Annaleigh Ashford. B Positive was created by MOM writer, Marco Pennette and was inspired by his own real life kidney donor experience. Chuck Lorre also serves as Co-Executive Producer.

Check out the video above for a behind-the-scenes look at B Positive and be sure to tune in tonight at 8:30 PM ET/PT, only on CBS and streaming on CBS All Access. Check your local listings for more information.