By Michael Tedder The streaming industry continues to experiment with ad-supported tiers. NBC’s (NBC) Peacock spent the first two years of its existence as a dark horse in the streaming wars. At the end of last year, it had “54 million total subscribers with more than 20 million active accounts,” according to the Hollywood Reporter. This put it well behind Netflix’s (NFLX) – Get Netflix, Inc. Report 214 million total subscribers and Disney+’s (DIS) – Get Walt Disney Company Report 118 million total subscriptions. But Comcast (CCZ) – Get Comcast Corp. Report and NBCUniversal are well aware that…