The Naked Brothers' Greatest Hits Marathon (Nickelodeon, 4 p.m. ET)
Hosted by Nat and Alex Wolff, this six-hour Naked Brothers extravaganza will begin with The Naked Brothers Band -- The Movie and continue with five previously seen episodes of their
series. The repeats will be followed at 8 p.m. ET by a brand-new episode titled The Song, in which Nat and Alex each secretly compose a song without telling one another and later learn that they wrote the exact same song! (Cue the Twilight Zone music.) The marathon will end with a special karaoke version of The Naked Brothers Band -- The Movie (beginning at 8:30 p.m.) in which lyrics will be displayed at the bottom of the screen during songs.
Stargate SG-1 (Sci Fi Channel, 8 p.m. ET)
Series Finale. Stargate isn't really coming to an end. Its spin-off, Stargate Atlantis, which has its season finale tonight, will return, and there are direct-to-DVD Stargate movies and another spin-off in the pipeline. But for now this is it for original episodes of this ten-season-old
franchise. In this all-important hour, the Asgard have only a short time left to live and plan to hand over their wide-ranging knowledge base, technology and history to SG-1 -- until an attack by the Ori changes everything and results in the Odyssey being suspended in a time dilation field -- possibly for decades.
Born Country: My Big Redneck Wedding (CMT, 8 p.m. ET)
Watch as two country couples get married
and see how monster trucks, shotguns, ATVs and camouflage figure into the fun.
Stargate Atlantis (Sci Fi Channel, 9 p.m. ET)
Season Finale. Facing a potentially catastrophic attack from the Replicators, McKay opts to sink Atlantis once again, just as the
ancients did many millennia ago. But that may not be enough to save the city, and you won't believe the alternative! Talk about a cliffhanger!
Tribal Secrets: The Wodaabe (National Geographic Channel, 10 p.m. ET)
Premiere. This documentary is about a nomadic tribe of cattle herders who live on the fringes of the Sahara in West Africa
and have maintained their day-to-day activities and rituals for thousands of years -- including an annual male beauty pageant that is judged by women!
