Ping ID has a beaut animated sequence showing the different combinations of the various bindings that SAML 2.0 allows for, e.g. redirect for the AuthnRequest and Form POST for the Response, or Artifact for both AuthnRequest and Response, etc.
Unfortunately there is no audio. You'll have to use your imagination. I personally couldn't help but hearing a nasal Australian accent doing the voice-over, e.g. 'the SAIMEL aissershun' is paessed from IDP to SP'. Not quite sure why.
I also couldn't stop thinking that the cookies being passed around were Anzac biscuits.