Roger Ebert says video games can never be art

[The Ghost of RubangB]

I'd say TV is somewhere between cinema and serialized radio dramas. As a medium it's basically film, but the style makes it much more like radio shows. What makes film film is the ability to use editing to control space and time much quicker than any other medium (you can go in and out of dozens of flashbacks all over the world in a single minute, can't do that in a book or a play or a song), and it took a few decades for filmmakers to discover that and really start to shine. What makes radio radio is the use of stereo to control space through sound, and the fact that it's always serialized and always has to have chapter breaks to go in and out of commercials so it has to have constant epic cliffhangers (although that affects the style and not the medium, you could easily make an audio book/play without commercials). And radio dramas are definitely considered "audio art" or "sound art." Film/TV took that stereo-space controlling from radio and just added visuals and much more powerful space/time editing. So they're almost all the same medium.