Even watching tape doesn't properly convey the circumstances, back-stories, and historical significance of many fights.
I'll give you an example- Fedor vs. Heath Herring.
Just watching the fight, you see Fedor doing what he does. GNP and beating Herring mercilessly for 10 solid minutes.
What you wouldn't know is that Fedor was a virtual unknown from Rings and that Herring had recently beaten Mark Kerr and was considered the best American fighter at HW in Pride after Coleman, Kerr, and Erikson had all lost recently.
And the piano, it sounds like a carnival
And the microphone smells like a beer