Several movie and TV sites have come and go where you can just visit and watch without even creating an account. Quality might not be as good as a paid service and they are no doubt in the grey-to-red zone legally. I don’t see the same service for music.
Why do you think is there such a difference in trends?
RIAA was famously litigious but music was also much more widely available to pirate so it made it harder for streaming services to offer enough value to tempt users away from piracy. Services like pandora that (originally, at least) offered good value in terms of music discovery were the only ones to really offer a compelling reason not to pirate.
When it comes to movies, though, the much larger file sizes kept piracy a more niche activity for longer. When I was in uni pretty much everyone was running Kazaa or similar for music, but only techy folks would put in the effort to pirate videos.