Never shut your brain down.
Monty Python is filled with subtle (and not-so-subtle) jabs at the British upper and middle classes. They parody everything from the class system to the hypocracy of the officer class waxing nostalgic about sending young men off to die to the absurdity of the American movie industry "It's in the contract: He gets to fight the lion." Monty Python's good for the soul but not because it's stupid or random but because the educated men and women involved in its production worked long and hard to craft a surrealist piece of absurdist art for twenty-some minutes a week.
You think "The Meaning of Life" just happens? That's a legion of educated, dedicated and creative people working long hours in the writers' rooms and music studios.
Zipzip, this feeling you are having is not a sign of dysfunction, it is a sign of proper function. If it were as easy as "turning off your brain", you wouldn't be in this situation. If it were just a matter of watching offensively bad or profoundly unchallenging things, that would have done it by now.
Your options are not "media you like" or "media that is smart that won't be engaging". That is a false dichotomy. There is a world of things you just haven't seen yet. Media you haven't consumed, foods you haven't tasted, games you haven't played, songs you haven't heard, stories you've never read. Even if there's a lot of crap to sort through, sorting through it will help you figure out what it is you want, at what level you want it and what form you want it to take. Just accepting some thin gruel from a thing that is kinda-sorta what you like i guess will, at best, forestall the return of this sensation because the sensation is not due to a lack of things in the world, but a lack of knowing what things to go for and much as everyone (myself included) would love to just throw things at you and have one of them be The Thing You Need, you'll never find the thing you need if you don't try things that are right out of left field and run the risk of being more disgusted all over again.
You're learning how to weild a scalpel, Zipzip. A scalpel, a lightsaber, a chainsaw and a BFG all rolled into one.
Your frustration and despair is your call to action! An adventure in media awaits you! Dive in face-first and slay the dragons of shoddy writing and boring plotting! Laugh in the face of shoddy craftsmanship in million-dollar films and learn to adore the shortcuts taken by amateurs. Pass through trials of quality, fall in love with the bizarre and the foreign, sharpen your mind's edge on every rough stone you come across until it glows blue and cuts through chaff like the reaper's scythe! Take on and cast off media obsessions in quick succession like the names of some mad, hungry trickster god!
Don't hate it because it's modern! Don't hate it because you've seen it before! Hate it because it cannot match the face of your elusive Dulcinea! Find glory whereever you can and learn disdain for everything that cannot match it! Find it in a well-made children's program or a hard-hitting drama or a song or a poem or a line of political reasoning!
And if you can't find it, take a ball of clay in your hands and like some old, forgotten god, get to crafting the thing which expresses your inner self in perfection. Even if the screenplay will never see the light of day, write it. If the comic will never have art, write it. If the sculpture will never see a gallery, sculpt it.
Steve Ditko, one of the men who made Spider-Man the multi-media powerhouse he is today, labours in his office, nearing ninety years old, quietly producing pages for comic book stories no one but him will ever see and if you must become that labourer to find joy in your life, then you do it.
Not because I want you to be lonely, but because this is YOUR ONE AND ONLY BRAIN IN YOUR ONE AND ONLY LIFE. Life is too short to waste on badly-realized or lazily-written media. No one has time for art that is so painfully mediocre that it makes no impact but its own mediocrity.
I'm not saying you need everything to be GREAT but learn what great looks like for you and what good looks like for you and where the line between them is. But learn it! Know it! You're a streetwalking cheetah with a heart full of napalm! You don't need to think less, you need to think MORE.
You need EVERYTHING except turning off your brain. You need to turn it on then crank that sucker up to twelve.
The story that perfectly describes your life and syncs up with your values is out there! You are not alone in the cosmos! But if you don't go questing for it, you'll never find it and if you don't get swallowed by a few dragons on your way there (and cut your way out of their throats with your lightsaber-chainsaw-scalpel-bazooka, of course), you won't appreciate how GOOD it feels to have one thing (though it's usually a small family of hidden things) which gives you the excitement you crave without making you feel insulted or taken advantage of.
And when you hold some token of it in your hands and in your heart and devour it and make it a part of you, you go out and do it again because your search has left you changed and in need of something new but suddenly able to apprecate everything you went through to get there. Every slain beast and saved village and new companion will be a song you found along the way which reminds you of home and you will return to those things you love not as a petitent or an old friend but as a cosmic singularity in the tiny fleshy confines of a human being and you will experience them with new eyes and a new heart because you are a new birth, your own most recent regeneration, so much bigger on the inside than ever you were before because you contain multitudes and have been so many people along the way: a gamer, a hater, a fanboy(or fangirl, I don't know), an expert, a n00b, an evangelist and a wanderer of the desert wastes.
Go FORTH, adventurer! To glory!