The lucrative NBC sitcom “Cheers” featured a washed-up baseball-player-turned-bartender, a spunky waitress and a bunch of regulars who hung out at the bar. By the end of its 11-season run in 1993, the show was getting 26 million viewers a week.Back then, the public could get a lot of information about how our favorite shows performed. But for streaming in 2023, that data is harder to come by. It was a sticking point in the five-month Hollywood writers strike. Members of the Writers Guild of America have until next week to ratify a new contract with studios that includes access to data like total hours streamed. But even that metric isn’t enough, Brandon Katz, a strategist at entertainment consulting firm Parrot Analytics.