I unbox my model 1 Sega CD and show what was included with it. There is no gameplay but the system's full intro is shown near the end: 18:37. Also, if you'd like to get an in-depth look at the software here is a good video by Jenovi: https://www.youtube.com/watch?v=XthKKHeKL6M.
Vault 1541 blog entry: https://www.vault1541.com/2019/03/youtube-sega-cd.html