Shango does a great style of troubleshooting and funny commentary along the way. Literally restores desert find TV sets to working.
Automotive, mechanics, and tinkering with engines mustie1 https://www.youtube.com/channel/UCcSeeATlWJJbXpOZRYOfaDg
He brings you along and explains to the user in a friendly way that makes you feel like you're in the garage with