What it says on the tin.
Garth Marenghi's Darkplace http://thetvdb.com/?tab=series&id=79554&lid=7A great comedy centered around a hacky horror writer and the TV show he 'wrote, directed and starred in' in the eighties.
It features egotistical interviews with the cast and crew (who all consider the show to be a classic) and the episodes themselves, which were filmed in the producer's garage, featuring horrific dialogue, ropey special effects and generally poor production values.
http://youtu.be/Vc6dt0rFddA - Garth Marenghi reading from one of his books.
http://youtu.be/Ygkqd7YiHy4 - An example of the show within a show
Trivia - the show was actually very expensive to produce, due to the attention to detail with regards to the old cameras.
Recommended for fans of Look Around You, Mighty Boosh, Police Squad.