The term 'USE A VCR' can be solved by the four-letter word 'TAPE'. VCR stands for Video Cassette Recorder, which was a popular device used to watch movies and television shows in the 1980s and 1990s. The device used magnetic tapes to store video and audio recordings, and these tapes had to be inserted into the VCR in order to watch the content. To use a VCR, one would need to insert a TAPE and press the play button.