Not all British Transport Films were highly polished cinematic masterpieces and it's fitting that the example presented here focuses on the ubiquitous British Rail second-generation rail car, or Rail Bus as they were marketed. Just as the Rail Bus was a low-cost example of public transport, the Audio Visual Tape Slide Presentation was a low-cost example of media presentation. The first generation of rail car was presented in the Diesel Train Driver series but here times have changed and an idea of sampling technology from the road to solve the problem of keeping rural railway lines operational and within budget is shown.