YouTube Recommended Channels

I spend a lot of time on YouTube, probably more time than I spend watching telly, but what really gets on my tits is their recommended channels. I’ve received 100’s of these so called recommendations and not one of them has been in my sphere of interests. They claim to fine tune the suggested channels on my rejection but all I can say is their algorithms must be shite because the the next set of recommendations are just as bad. Surely the channels I’m already subscribed to are a clue to what I like or is that too obvious.