I figured I put this here, not sure if it should go on the open source page but here goes. I actually not opposed to doing some of these things myself (and might) just never worked with other people on a team software project before. And please don't take offense I know it's a laundry list, but these things came up from using the program for a long time.
1) Custom shows should be easier to add. I don't think I'm alone but I have plenty of shows that are one-offs or shows that aren't in any database yet. For my own sanity I group the shows into custom series and put one-offs in other series where I think they belong. My screenshot below should show you what I did for my Christmas television specials. I also add a custom season to shows for my DVD rips, usually I add a Season 90 and add them there. I don't have the time to start ripping individual episodes and honestly aren't we being lazy enough already?
It would also be better along these lines to have lock and unlocks not tied to any IMDB or TVDB code.
Also would it be possible for the program to pick up files and give them an nfo file if they are in the right naming format? Meaning if I rip a DVD and name the ISO in the "show - season-episode - title" format MC will recognize it as an episode and add an nfo to the file.
These things would make adding custom shows much easier to do.
2) It would be nice to change the way screenshots are handled. First having the controls on the first tab instead of another tab. Move the controls right under the screenshot when you click on an episode. Second it would be great to have a right click menu item to grab screenshots for a whole season/series at a time interval of my choosing. This would be a great time saver.
3) Some way of display meta-data and also a way of easily re-scraping the meta-data only. That is the media information (video/audio codec, frame size, etc.)
4) A better way to deal with Actors in the GUI. Not the most pressing thing but would be nice to have versus editing the nfo files.