Well, but if you already know the brand, there probably aren't all that many choices to pick through in Pierogi. Only a few brands have as many as 10 TV keysets, and most have much less.

Also, a lot of minor players in the consumer electronics market are using devices manufactured by the big guys and rebranded in their own name; so, it can be worthwhile to try keysets used for other brands of device if you can't find a keyset specific to the brand you've got.

In any case, my biggest problem was just getting Pierogi's memory management under control; with that, playing around with keysets becomes a whole lot easier.