Apparently they invented HD video format just in time to catch Nirvana live on French TV in 1994. This gives us a chance to appreciate one of the world's greatest rock 'n' roll bands in full effect, but there's more to it.
Besides the magnificent crispness, this gives a sense of Nirvana as an evolving, experimental band. Not only does their styling echo, to a stitch, that of indie bands, ska bands and indie-revival bands of the new 2000s it also shows them abandoning any grunge aesthetic. They were a rock band that came out of a particular scene, sure, but they were set to evolve, adjust and develop like other important bands like the Stones, REM or your Metallica had.
What we find fascinating is that Nirvana had become a four-piece by this point. Pat Smear, formerly of The Germs and later of Foo Fighters, was playing second guitar, which freed up Kurt to play frontman, singer. Working the mic!
"I don't care what you think unless it is about me!"
This was early days, but you sense that's where Kurt belonged. He was the voice. He was just clearing his throat! Tragically, we lost him a month or two later. Dave Grohl, there on drums, went on to start the Foo Fighters, but this was where the real energy lived.