Viacom’s MTV is testing a new promotional approach by livestreaming its new true-crime docu-series, “Unlocking The Truth” on Facebook Live and YouTube at the same time the show debuts on cable TV this evening at 11:00 pm. Additionally, replays of the premiere will be made available on both platforms after the premiere airs. “But sorry, cord-cutters: Only the premiere of the eight-episode series will be available free without a pay-TV subscription,” notes Variety. The digital simulcast is “a different spin on the free sampling strategy TV networks have long used to gin up interest in a program.”