Two favorites return tonight, making Friday a night to stay in instead of go out.

Monk – USA 9/8c – SEASON PREMIERE
“Mr. Monk’s Favorite Show” – Monk connects with a visiting African widower (Adewale Akinnuoye-Agbaje) who’s investigating his wife’s death. Meanwhile, Monk works on a high-profile case in which a maid’s killer tended to her wounds.

Eureka – Syfy 9/8c
“If You Build It…” – A strange structure comprised of electronics and scrap metal is assembled in a field by Eureka’s teenagers, who appear to have been manipulated while they were sleeping.

Psych – USA 10/9c – SEASON PREMIERE
“Extradition: British Columbia” – In the Season 4 opener, Shawn and Gus meet an elusive art thief (Cary Elwes) while skiing in Vancouver and discover he’s not what he seems.