That '80s Show
Pretty good story about the failed reboot of That '70s Show that was set in the '80s paved the way for Always Sunny 🌞
That '80s Show helped start Always Sunny, but not in the way you think

Most fans assume that "That '80s Show" is what put Howerton on the map. It may not have been the success he wanted, but at least it put some good TV experience under his belt and proved that he could handle the responsibilities of leading a sitcom. While there may be some truth to all of that, the real benefit of "That '80s Show" is that it gave Howerton just enough spending money to afford a nice camera.
On "The Always Sunny Podcast," where the show's cast and crew reflected on the early episodes of the show, they revealed that the invention of the Panasonic cameras in the early 2000s was a major part of what got them started. As Rob McElhenney (who plays Mac and is credited as the creator of the show) explained, "It was the first time that you could have a consumer grade camera that didn't look like a videotape." Before the 2000s, there was a major gap in quality between the sort of camera the average person could afford and the sort of camera used for professional movies and TV, but the Panasonic camera leveled the playing field slightly...
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https://www.slashfilm.com/1861096/its-always-sunny-in-philadelphia-failed-sitcom-spin-off-that-70s-show/