I recommend Just for Laughs Gags and Americas Funniest Home Videos. If you're in a bad mood, or just down, you will at some point end up laughing when watching these. :)
[–] I_check_passwords ago
regularcars or LinusTechTips. Regular Car Reviews are done by a hilarious man who sometimes discusses the history behind the car and I chose Linus because technology and everything that it entails.
[–] Messiadbunny ago
https://www.youtube.com/user/JamesNintendoNerd
But really only the Board James and The Angry Video Game Nerd portions. Some of the other sections have good videos but some are rather boring.
[–] batofwonder ago
If you enjoy modern parodies check out Bart Baker. If you like to learn about random things, tedx / tedtalks. If you want to hear original raps check out ERB (Epic Rap Battles of History).