Technology Slice Blog

School Gyrls Special - In “A Very School Gyrls Holla-Day” (Nickelodeon, Saturday), the stars of Nick Cannon’s “School Gyrls” featurette return, narrating as their future aged selves a spaghetti-strap-thin tale of being trapped in a mall overnight it’s just connecting tissue, really, between some new and old holiday songs in modern modes and makes no particular sense, but it’s loose and likable. The story-to-song ratio is much higher in “Big Time Christmas” (Nickelodeon, Saturday) an hourlong expansion of “Big Time Rush,” Scott Fellows’ exuberant boy-band-as-Monkees-as-Looney-Tunes Nickelodeon series, that finds its stars trying to get home to Minnesota. Guests include Miranda Cosgrove, from “iCarly,” and the bizarrely wholesome Snoop Dogg, who helps the boys cut a new version of “The 12 Days of Christmas.” Tragedy briefly strikes when they are told, “Justin Bieber just released ’50 Days of Christmas’ with 50 Cent. It’s over eight hours long, and it’s a masterpiece.” School Gyrls i...