I struggled to do this, but I finally did it. I deleted my back episodes of the DC shows on the CW. I was between 30 to 40 episodes behind on those shows. I just wasn't getting that much enjoyment out of them in relation to how much time I have to watch shows. It's not a huge loss. I could watch them on Netflix later, though finding where I left off could be a pain.
It did reduce my DVR from 78% full to 47% full.
I have too many shows that interest me that seem like they would pay off better than the shows I just deleted. I still need to begin or catch up on Santa Clarita Diet, Crazy Ex-Girlfriend, Chuck, Iron Fist, Sense8, Unbreakable Kimmie Schmidt, Man in the High Castle, House of Cards, Dexter, Bojack Horseman, Fargo, Hannibal, Black Mirror, A Series of Unfortunate Events, Travellers, and Doctor Who.
Well, damn, that list makes me despair. That's not including shows that I am caught up on and just waiting for the next episode/season like American Gods, Better Call Saul, Preacher, Legion, and whatever else.
Hmm, I did save up my Gotham season 3, but I may delete that too. I'm mildly curious since the Penguin's story got a little more interesting with his lost family. I'll hang onto it for now.
But deleting all those episodes was a little scary to a hoarder like me.