College football gets underway with Nebraska vs. Northwestern (Fox, 12:30 p.m.) — in Ireland of all places. Well, people will be less likely be struck by heat exhaustion there. Other games on an August opening weekend include Austin Peay at Western Kentucky (CBS Sports, noon), Idaho State at UNLV (CBS Sports, 3:30 p.m.), Stephen F. Austin vs. Jacksonville State (ESPN, 3:30 p.m.), Connecticut at Utah State (Fox Sports 1, 4 p.m.), Charlotte at Florida Atlantic (CBS Sports, 7 p.m.), Howard vs. Alabama State (ESPN, 7 p.m.) and Vanderbilt at Hawaii (CBS Sports, 10:30 p.m.).

Sports are the only fresh thing on broadcast TV tonight, but none of it is college football. Instead baseball, with Atlanta at St. Louis (Fox, 7 p.m.) and NASCAR’s Coke Zero Sugar 400 (NBC, 7 p.m.) from Daytona. 

Elsewhere, “Dr. Jeff: Rocky Mountain Vet” (Animal Planet, 8 p.m.) helps a German Shepard walk again. 

Shorter days and frigid winds are part of winter in “Africa’s Wild Year” (BBC America, 8 p.m.).

First available as a streaming special in June, “Martin: The Reunion” (BET, 8 p.m.) makes its cable debut, marking the sitcom’s 30th anniversary with special guests that include Snoop Dogg, Tracy Morgan, Le’Andria Johnson and Brian McKnight. 

In the made-for-TV romance “Game, Set, Love” (Hallmark, 8 p.m.), a former tennis pro enlisted to help a former doubles partner and her new partner, unexpectedly warms to him. Davida Williams, Richard Harmon and Tracy Austin star.