[bayes]

I've often wondered how long it will be before TV companies edit the video of sporting events to replace the adverts in the stadium with different ones they've sold themselves. Given the adverts are in fixed places it would be easy to do you'd think.

[ZeroGravitas]

I thought this already happened, with localised adverts being shown to different audiences?

[pak]

Yes, it does.

Next time you go to a (newer) baseball stadium, check out behind home plate and you'll sometimes see painted blocks where the TV cameras overlay ads.

[prawn]

The sporting leagues would disallow this in their rights deals, IMO.