Is it still possible to get the Replayer achievement in Street Fighter IV, or is the Replay Channel broken?
Solution 1:
I don't know if there's any way to fix the generated channels ("Random", "Originals", "Newcomers", "Alpha", "Turbo & III", and "Boss"). However, you don't need them to complete the achievement.
You can still get the "Replayed" achievement by watching replays you've saved or downloaded, through menus such as "Battle Log". Sadly, this means you will need to manually start playing the replays 30 times; it won't automatically continue to play another one like the generated playlists would have.