Highlights

Highlights

This morning, "This Is America With Dennis Wholey" (Channel 32 at 11 a.m.) talks about election anxiety and financial stress with psychology experts Renana Brooks and Katherine Nordal.

Hard-core "Gladiators" (BBC America at 4 p.m.) premieres with an Olympic runner and Royal Marine commando competing.

Tonight, the action-adventure series "Legend of the Seeker" (Channel 50 at 8), based on Terry Goodkind's Sword of Truth books, makes its two-hour debut in which a seemingly ordinary woodsman discovers he has magical powers.

"Primeval" (BBC America at 9) wraps up as the team must battle a force from the future to survive.

Sen. John McCain is scheduled to stop by "Saturday Night Live" (Channel 4 at 11:30), hosted by Ben Affleck and with musical guest David Cook, the latest "American Idol" winner.

"SNL" executive producer Lorne Michaels, meanwhile, will be interviewed on "Huckabee" (Fox News Channel at midnight), as will Kelsey Grammar, Bill Maher and Richard Dreyfuss.

Sunday morning roundup: "Fox News Sunday" (Channel 5 at 9) interviews McCain campaign manager Rick Davis, Obama campaign manager David Plouffe and former White House adviser Karl Rove; "This Week" (Channel 7 at 10) has Obama campaign senior strategist David Axelrod and Rick Davis; "Weekend News With Chris Core" (Channel 50 at 9:30) hosts the Chicago Tribune's Clarence Page and Mark Silva, the Los Angeles Times' Doyle McManus, Research for Common Cause Vice President Tova Wang, Maryland Chamber of Commerce President Kathleen Snyder and Maryland United to Stop Slots senior adviser Scott Arceneaux; "The Chris Matthews Show" (Channel 4 at 10) features Time's Joe Klein, BBC's Katty Kay, The Washington Post's Eugene Robinson and MSNBC's Norah O'Donnell.

"Newsmakers" (C-SPAN at 10) has Change to Win Executive Director Chris Chafe and U.S. Chamber of Commerce Vice President William Miller; "Face the Nation" (Channel 9 at 10:30) interviews David Axelrod and Sens. Lindsey Graham (R-S.C.), Charles Schumer (D-N.Y.) and John Ensign (R-Nev.); "Meet the Press" (Channel 4 at 10:30) has former senator Fred Thompson (R-Tenn.) and Sen. John Kerry (D-Mass.), The Washington Post's David Broder, MSNBC's David Gregory, NPR's Michele Norris and NBC's Chuck Todd; a special election "Late Edition" (CNN at 11) features Sen. Bob Casey (D-Pa.) and Gov. Tim Kaine (D-Va.); "The McLaughlin Group" (Channel 9 at 11:30) hosts MSNBC's Pat Buchanan, Newsweek's Eleanor Clift, Clarence Page and syndicated radio commentator Monica Crowley.

Sure he can belt out a tune, but can he act? Tomorrow night, Toby Keith stars in the cowboy comedy adventure "Beer for My Horses" (CMT at 7), along with Willie Nelson and Ted Nugent.

"The Simpsons" (Channel 5 at 8) has its annual "Treehouse of Horror" special, with spoofs of "Mad Men" and "Transformers."

Stephen frantically tries to use blood samples to expose the contaminated vaccine in the finale of "Masterpiece: The Last Enemy" (Channels 22, 26 at 9).

Lily Tomlin guest-stars on "Desperate Housewives" (Channel 7 at 9), which reuses the plotline of Lynette suspecting Tom of having an affair.

Struggling actor Vince finally landed a movie role on "Entourage" (HBO at 10), but his first day on the set doesn't go so well with an intimidating co-star.

"Army Wives" (Lifetime at 10) ends Season 2 with big changes and decisions, and Pamela questions whether marrying into the Army is the best idea.

-- Emily Yahr