I really enjoy the Big Bang Theory - it seems to be a very good show to watch post therapy as I find it quite funny.
Being Erica - I don't know that you'll find this on netflix, it's a Canadian show - but I absolutely love it, would probably take that show over most others any day.
Mini-series that always cheers me up is the 10th Kingdom - a hodgepodge of fairy tales. When I got it in the mail a couple years ago I actually jumped up and down and squeaked for excitement of having it in my hands.
Favourite movies - I tend to go back to my favourite childhood movies when down, but those vary from person to person so I'll stick to more recent movies. I loved Eternal Sunshine of the Spotless Mind. Erm... I'm trying to think of others that I always love, but generally speaking I have to be in a certain mood to watch different genres of movies. I loved P.S. I love you, but I'm a sap *shrug*.