Hi I have found that it helps a lot to check the rss-feed of a show with the hd-tag in it, especially for older episodes. For example engine.com/rss/showname will give 10 or 20 results, and the chance of the right file being in here is really much smaller then for the feed engine.com/rss/showname+720p.

Therefor I suggest adding the HD-tag to the rss-feed itself instead of filtering for it later. Maybe a good thing to keep in mind? Let me know if I explained it correctly

Hm, that is something we could do. Not only for the HD keywords but also for all of them. Although that could be more difficult. I'll keep it in mind