I started off reading your reply and got very confused. My confusion came mainly because I didn't understand the whole process behind Metadata and TVDB when it came to VAP. I hadn't realized about the season/episode combined with the episode name. Thanks for pointing that out. I used ToubMetaReader to look at some of the WTV files (not the ones mentioned in my examples). All had the "Subtitle" showing the S/E combined with the episode name. The "Title" was listed just as the episode name. So, I thought that VAP was feeding the "Subtitle" to TVDB rather than the "Title". On second thought, VAP is feeding both "Subtitle" and "Title" and all is well except for the combining in the "Subtitle". I record probably on average 6-8 shows a day (almost all for my wife) but I only had one failed TVDB search every few days so this really confused me as to why only a few were being rejected. Putting that aside, the S/E combining with the episode name rang a bell with me. EPG123 (which supplies the Schedules Direct EPG to Windows Media Center) has a setting to do that in the Metadata. I checked and I had it set to do that and so I turned that off. We'll see where that takes me. Probably that should cure the TVDB fails. I'll know better tonight after the evening recording sessions.
As far as the incorrect original air dates, yes, that's been a long standing problem. It seems that the problem shows up most often on PBS shows as they use a great many previously aired in Britain BBC and ITV(?) shows. Other channels are bringing in previously aired British and Canadian shows, too. I'm not really worried about that as I don't mind dealing with that on an individual basis.
Could you elaborate on what you mean by input file parsing? Is that found in the advanced settings and deals with {wildcard}, {wildcard2}, etc.? I'm confused on how that works as well now. The thing is that (until maybe when I turned on the wrong option in EPG123) everything I had set up in VAP just worked. I never had to fiddle with it after you initially offered the setting and I set it up based on your examples then. It just worked and I left it alone and forgot what the settings meant or were there for.
Eventually I hope to turn off VAP's episode/movie renaming and run Filebot as a separate renamer. I use it now manually and I hope to have the process all scripted up in the future. The only problem is that the author of Filebot is a genius at writing complex command line procedures and scripts but is lousy at teaching the basics.