When you click on the right on Program Guide, then type in the name of the show you want, sometimes it will say NO RESULTS. If I then go over above the guide shows and change the category from Discover to Shows, it pulls up a tile list of all shows, alphabetically, and there I find the show I want. The one as an example is the NBC show Dateline. I tried to search above in the box with the magnifier glass and it says NO RESULTS, but if I went and changed Discovery to Show, and scrolled down through all the shows to the “D”'s section, there was Dateline and I could set up the recording schedule from there.
The search bar doesn’t seem to fully function and misses shows that are actually in the guide but to find them you have to scroll through all the shows alphabetically to find it.
I didn’t see an area to post glitches for the DVR so hopefully the Plex Dev team will get this.