There was definitely one that worked for the full season, as I got one (cost £10/15 if I remember rightly) and used it a few times. I believe it was run by the same people who ran Wednesday Player, as I know they were available at other grounds as well - I sometimes watch Burnley when I'm visiting my parents, and Clarets Player were doing the same thing. I'd assume that for ease of production that they all ran off the same frequency, so could be used interchangeably, but I never got to try it out at Turf Moor. In any case, they'll not work now as iFollow took over and I'm guessing all the kit will have been replaced.
Apparently the ones you get at the Test matches allow you to switch between BBC and Sky commentary, so it's different kit.