There’s something quite sad about this short feature. It’s all about three once famous kids’ television characters who have been abandoned following the end of their run on the small screen. Left to rot, really, forgotten in a fly-ridden room with only loads of old VHS cassettes of happier times, we meet the characters who epitomise so much of what we grew up watching religiously. “Mary” is still unconvinced that there aren’t still people watching somewhere as she scours the colourful letters from the fans; “Fumbleton” is a disappointed, unfulfilled, thespian and then we have “Billybud” all…