The problem with showing the local ads is that they sometimes only pay for rights for a certain region. If they hire musicians for the jingle and the audience is only NYC, then the fee would generally be less than if it were for a global audience.

I think that's why they show all the baseball zen stuff rather than ads for whatever feed they are broadcasting.

My preference would be for them to pull back to a whole-stadium view and just let the ballpark sounds play. The stuff the MLB inserts is all pretty bad.