[ADDED] USA - Locals

[duraleigh]

Sorry, no.
They have most probably the same programming, just the local news are different.

We won't waste resources on grabbing and processing the same data 20 times.

I can certainly understand your reasons for not wanting to provide a bunch of local affiliate channels. 
Local channels in the USA do not run the same programming for the vast majority of the day. In fact,  from 7am - 10 am , 6:30pm, from 8PM to 11pm, and then finally from 11:30pm to 1:30am are the ONLY times when the networks run the same thing. Only 8.5 hours out of 24 are the same. For the remainder of the day, each local affiliate has control over their programming and every single affiliate will have a very different line up. They do not sync up in anyway outside of those 8 1/2 hours. 

That said, it certainly would be tedium and a real pain to attempt to find EPG for every affiliate. 

I'd love to convince you, however, that there would be GREAT VALUE in providing the EPG for just ONE affliate in each time zone.  
Local channels like CBS in New York and the CBS affliate in Boston DO at least share the same programming schedule for a portion of the day. However, for those of us who do not live in the eastern time zone, using the EPG data for CBS in New York (on the east coast) means, in fact that ZERO of the data is correct for us.  Even the times when the local channels do all show the same thing won't work for us west coast viewers, because all of the EPG data is off by 3 hours. (Since this is only the case for the major national broadcasters and not for cable channels, I can't time shift the epg for just a few channels)

If there is anyway you could be talked into choosing the major city in each time zone and providing the local channel EPG for ABC, NBC, Fox, and CBS in those cities, that would cover everyone. 
For example, I am in Seattle but if you were to provide the EPG data for all of the network affiliates in Los Angeles (KABC, KCBS, KNBC and whatever the Fox affiliate is) that would work for EVERYONE on the west coast, because we all do follow the same basic network schedule. 
For the mountain time zone, perhaps either the local affiliate in either Phoenix or in Denver (as they would still work for anyone in that timezone)
For central time zone, Chicago would be the largest and the EPG for those channels would work for a huge part of the country
You already have the east coast covered, because the entire east coast can use the New York or Philadelphia or Boston or Miami EPG that you already offer... but anyone in other parts of the country finds those useless.

I'm not even asking for my own local channels EPG. I don't live in any of those cities. This is just a suggestion for a way to provide local epg for the entire country vs just the east coast. 
One city in each time zone.
LA, Denver, Chicago

Would love it if you would consider a compromise like that.

Either way.... as always.... thank you SOOOO much for this awesome service you provide!