Wednesday television

"American Idol" 8 p.m. Fox — The top 10 perform songs by past "Idol" winners.

"Survivor" 8 p.m. CBS — Brandon suffers a meltdown and sabotages the Favorites camp.

"Under Siege: America's Northern Border" 9 p.m. Discovery — Watch out for those terrorists posing as Canadians, eh?

"The Americans" 10 p.m. FX — Philip reunites with an old flame, straining his relationship with Elizabeth.

"Duck Dynasty" 10 p.m. A&E — The guys ditch work while Willie is out of town.

"Psych" 10 p.m. USA — Shawn and Gus pair with college students filming a documentary about Bigfoot.

"Southland" 10 p.m. TNT — John mulls over the life he'll have once he leaves the LAPD.