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I've already mentioned that I think it would make sense for movies and TV shows to have their only space at the top level of the music browser. Here are a few other things I noticed:
1) When the music browser displays the tracks of an album, or from all albums by one artist, it seems to put the tracks in alpabetical order. I'd personally prefer the display (and playback) to be in track order within an album; and in track order by album (with albums separated) within an artist.
2) When the music browser chooses an album of music to play, it adds the album's songs to a "Remote Buddy" playlist and then plays that playlist. But when it chooses a movie or TV show, it just plays it from the corresponding library. This means that a) if the visible playlist in iTunes is not that library, there can be control issues (stop instead of pause, etc.); and b) when the movie finishes the next movie will play (when I usually watch a movie, I like everything to stop when it's over). Why not be uniform here: add the movie or TV show to the "Remote Buddy" playlist just like with music. That way a user could make the playlist always visible, and their control over whatever's playing would always be normal.
As the title says - these are just humble suggestions to improve an already great app. Cheers!