These options are exactly what we hope to add going forwards, but we dont have that many resources avaible to prioritise them. any OS contributions to such are much welcomed.
We are about to complete a 3Speak update and with this it will be pretty easy to spin up your own video tube. we actually have a BTC dedicated tube that will be set up over the coming months.
Ecency also has videos, so a tube is already possible, but with a few small tweaks you can prevent any other type of content being uploaded and shown other than vidoes