If you publish videos on PeerTube, it lets you organise them in two ways: your account and your channels.
An account shows everything that the person has uploaded all in one place. Channels are sub-divisions of the account, and show only some of the account's videos.
For example, the account @mrfunkedude has its videos subdivided into a cooking channel @baking, a short video channel @mrfunkedude_sfv and a philosophy channel @mrfunkedudes_place
HOWEVER... there's a catch
On most Fediverse servers outside PeerTube the videos will appear to all come from the same account rather than any channels. The channels can be followed, but the videos will only show the account's name, not the channel's.
If you are using PeerTube channels to organise your videos, bear this in mind.
If you need to keep PeerTube videos completely separate, it may be better to use separate PeerTube accounts rather than relying on channels.