Original sentence: Advances in portable video cameras and recording equipment meant that the show could be videotaped on board a real ferry with more realism than using studio sets and more cheaply than using 16mm film which was normal for location televsion drama at the time
Edited sentence: Advances in portable video cameras and recording equipment meant that the show could be videotaped on board a real ferry with more realism than using studio sets and more cheaply than using 16mm film which was normal for location television drama at the time