In 1989, Nintendo partnered with Sharp to sell a TV with a built-in Nintendo Entertainment System that cost about as much as a comparable TV plus the NES console... but you didn't get a game or a Zapper.
Though it looked odd with extra bulk on the bottom and four easily-breakable "feet" protruding from each corner, there wasn't anything saying "Nintendo" or "NES" on the front. It just had a door that said "GAME" and an extra button on the remote for jumping to that game. Even looking behind the door you had to be familiar with NES buttons, cartridge loading mechanism, and controller port layout to recognize it. Yes, it had the same flawed ZIF connector as the NES-001 everyone remembers, unlike the later top-loading NES-101 from, I think, 1993.
Internally it's just connected to composite video. Nothing fancy like RGB, though misinformation about that persists in some places online. I remember seeing one on display at K-Mart but there was nothing mentioning that it had a built-in NES. I don't even think the employees knew that. I ended up bringing in my own controllers/game to see it work.
It's a collector's item these days. I could never afford one then and I definitely can't afford one now unless I find someone who doesn't know what they have. Came surprisingly close today: Turns out that this TV included black versions of the original gray NES-004 controllers, but the Nintendo branding on the front is removed and replaced with "Game Television." They look like bootleg controllers to someone who doesn't know what to look for. Looks like they sell for about $100 each and we just spent a tiny fraction of that on BOTH!
Moral of the story:
BOLO for a funny-lookin' Sharp-brand CRT television that could be worth a small fortune. Also, black NES controllers with "Game Television" on the front are rare/desiresble too.