Best tube bets this weekend Friday: 'SpongeBob' special on Nick; Saturday: 'Wanda Sykes' debut on Fox; Sunday: season finale of AMC's 'Mad Men'   From Vegas, the music of Latinos Big and loud, enough to drown out the Big Five networks in key demos as Univision hosts the 10th annual Latin Grammy Awards   For Bill Cosby, an honor worth the wait He's accepting the Mark Twain Prize for humor from the Kennedy Center, after twice turning it down. On PBS at 8 p.m.   'By the People': The rise of Obama HBO two-hour special traces the candidate's path from promising first-term senator through his election to the White House   A few last words from Kate (or not) America may have tired of the Gosselin saga on TLC, their curiosity about the nasty breakup sated, but she's not done talking   Best tube bets this weekend Friday: Epix launches with Madonna; Saturday: Syfy's Halloween 'Ghost Hunters;' Sunday: Brett Favre travels back to Green Bay   On 'Vampire Diaries,' a night of fright CW show is in its element leading up to Halloween, and to pump the episode the network is texting alerts to likely viewers   'Mutant Pumpkins from Outer Space' Gripping title of this NBC Halloween special, a spinoff of the hit CGI movie 'Monsters vs. Aliens,' about says it all   Horror of horrors, Spike's 'Scream 2009' Awards show honors the best in sci fi and horror, riding on the popularity of movies like 'Twilight' and HBO's 'True Blood'   For ABC, its belief in 'Castle' pays off Light-hearted procedural is gaining in the ratings in its second season after the network took a chance and brought it back << prev next >>