SNL ’s previous version of Britain. Photo: Dominique Russo/NBCU Photo Bank/NBCUniversal via Getty Images Turn on your favourite telly: Saturday Night Live is streaming. Peacock confirmed that American viewers will be able to watch the upcoming British version of Saturday Night Live the day after each episode airs . The first episode of the series will premiere on March 21 on SKY One and NOW in the U.K. and be available the next day on Peacock. “ Saturday Night Live is one of the most