Nov. 1 (UPI) -- The Christmas season has officially arrived at TBS and TNT, with both networks streaming holiday favorites beginning Saturday. While " Christmas Maximus " at TNT will deliver "endless seasonal offerings and high-energy classics," TBS will play "nostalgic and spirited movies, series and specials" via its "All I Watch for Christmas" programming. Advertisement Viewers can tune in for marathons of A Christmas Story , National Lampoon's Christmas Vacation and Elf , a press release