Hi,
The only one that I can think of that does anything like what you want is the superb "DIGIGUIDE", which is free to buy and trial for 14-days, and then cost around £7-99 per year, for a full and unlimited subscription.
I'd highly recommend it, as not only can you tell it to only remind you about certain genres of programming (reality TV, news, sci-fi, etc), but you can set-up reminders to:
- remind you of repeats of specific episodes of shows you've missed
- remind you of repeats of specific seasons of shows you've missed
- remind you when a single specific film/show is repeated at anytime in the future
- search for other shows by similar genre, or by starring specific cast members or directors (e.g. all shows that Mark Dacascos has starred in, or all war films shown in the past 3 months, etc)
As an example, alongside the usual reminders of specific shows, I also have my Digiguide set to remind me:
- when Hallmark will be repeating all of Season 5 of "Law & Order: Special Victims Unit"
- when FX are repeating all of Season 3 of "Tour Of Duty"
- to highlight any show or series on any channel that is transmitting the first episode of the very first season, whether it be a new show, a repeat, or something that I've simply missed
- to remind me when Ugly Betty is showing, but only on C4 and not E4, etc, etc.
You can see more about the software, and download the trial from
here!

It won't e-mail you, but as long as you have your PC running, and the software running, it will remind you at any time you tell it too, prior to the show starting (e.g. 5 minutes, 2 hours or whenever). Alternatively, you can simply print off each day's personalised listings, or use them as a reminder of what you want to watch/record that day/week.
Does that help?
Pooch