Complex sentence: In 2004, Puppet Master vs Demonic Toys aired on the Scifi channel and was released on DVD in 2006, a concept which had been planned as far back as 1994.
Split into simpler sentences: In 2004, Puppet Master vs Demonic Toys aired on scifi and was released on DVD in 2006. It was a concept that had been planned as far back as 1994.