Welcome to a special Sunday feature of The Weekend Stream, which takes a look at one of MTV’s great live music programs thanks to a recent reissue of one of its best-known episodes. We’re running a five-part deep-dive on every episode of MTV Unplugged that’s currently streaming on the station’s parent streaming network Paramount+! (Part 1 can be read here.) The evolution of MTV Unplugged was not unlike that of the network itself. If those first years on the air from 1989 to 1991 were proof of the format’s artistic viability, the episodes recorded…