We'll give you precisely one guess as to which three HD channels Suddenlink has added in Muskogee, OK. Done searching? Try The Learning Channel HD (756), Discovery Channel HD (757) and Animal Planet HD (758) -- the same exact trio that it recently pushed to Lubbock, Texas and Arkansas. We had a hunch these three were in for a pretty big ride, so here's hoping even more Suddenlink regions see 'em in the not-too-distant future.