For those sweating to death and larding the lean earth for a Henry IV(1) exam, here's a gathering of links. Though I'm sure it's all in hand ...
The whole darned thing (Globe production) is available on digitaltheatre.com, and the good news is our ancient foundation subscribes, so you can watch it anywhere on the network:
Radio production with the brilliant Leo McKern as Falstaff:
Andrew Moore's commentary is really good:
Schmoop. Lively breezy commentary:
Useful stuff on Shakespeare online
For the analysis of a passage, this RSC publication is a really good guide to the fundamentals: