//I am fully paid up until Jan 31st 2022 via a DD in Jan. This year for the full amount.//
Sorry, rebelboy, I assumed you were paying by monthly DD. I thought that because, as above, I couldn't see why you had cancelled your DD if it was not due for another six months. Glad you cleared that up, sorry for the confusion.
As far as watching catch up TV goes, the law is quite clear:
The law says you need to be covered by a TV Licence to:
-Watch or record programmes as they’re being shown on TV, on any channel
-Watch or stream programmes live on an online TV service (such as ITV Hub, All 4, YouTube, Amazon Prime Video, Now TV, Sky Go, etc.)
-Download or watch any BBC programmes on BBC iPlayer.