Location based comparison

There are lots of price comparison web sites around. How about a web site or mobile app, TV widget that shows a map where you can go buy the product, relative to your location, with the price at each location, so you can balance price versus convenience. Seems simple enough.

Not so great for books/cds etc but maybe good for must have now purchases, larger purchases or items you want to see before you buy (clothes, furniture, TVs). Not sure how to make money from this though, no affiliate tracking for real life purchases :s Maybe sponsored listings or similar.

Little screen for the big screen in the corner.

How about a website that is aimed at people watching TV (with laptop on sofa).

Not exactly sure what the website might contain, but maybe running commentaries on corrie, betting on sport, webisodes related to the program or advert during the adverts/half time, aggregated programme content from the various TV channels. I'm sure there are lots of things. Probably. Then stick some (related) adverts on the site and hopefully make revenue that way, maybe even sponsorship when popular TV programmes are on (assuming you have the traffic yourself). WDYT?