Gaming Related: http://ca.ign.com/wikis/april-fools-day-game-pranks/2017_April_Fools_Day_Gaming_Pranks
Other related: http://ca.ign.com/wikis/april-fools-day-game-pranks/2017_April_Fools_Day_Internet_Pranks
Adult Swim aired the unannounced season opener for Rick & Morty ALL DAY Saturday (which was a shame as it bumped Samurai Jack to next weekend)
Ross Scott released Freeman's Mind 2 Episode 1 (Half-Life 2), however there's considerable debate over whether this was a joke or not, I guess we'll find out later
"Dreambird 1417" http://www.virginatlantic.com/gb/en/virgin-experience/flapenergy.html
[ "The flapping motion propels the aircraft forward, taking cruising speeds up to 900mph making this one of the fastest passenger jets in service." ] #BitchinTechnology!
via https://twitter.com/VirginAtlantic/status/847923066126651393
("you're going to call this Flappy McFlapface right?")
But pretty sure Branson's "dyslexic-only sperm bank" idea is actual real thing though.