First off, welcome to the forum. I hope you will stick around and post some more.
Some nice suggestions there. I know the favourites one has been raised before but in the light of the site advancements it would be no harm raising again.
On the air dates, I think that's probably a little harder to do in terms of resource. It would require someone to continually check that data and probably wouldn't be as sustainable, but, again, no harm in requesting and see what could be done!