I think Nathan Fielders "The Rehearsal" is the best Meta example of television out there. He completely deconstructs what a tv show is and blends reality with scripted wackiness in a way that leaves you wondering what the difference really is. The show goes so off the rails at point you can't help but laugh but if you really think about what he's trying to accomplish it's genius.

That said, I'm not sure we exactly clear on what meta is so not sure you'll agree with this. Take it with a grain of salt.