I would like to find out the lowest cost source for the following information:

1) total number of HDTV channels for the top 10 metropolitan areas in the US
2) For each of HDTV channels above, I will need the number of hours
and type of content for HDTV programming per day for at least a period
of one week.
3) For each metropolitan area, I would need the information above for
both Air Antenna and Cable TV system.
4) In a national basis, I would need the information above for both
major satellite systems (Dish, DirecTV)

While, it is not difficult to find the total number of HDTV channels
for a specific area, I cannot find any good source for the exact
number of HDTV programming and type of content. This seems to be
tedious process where I would need to extract this information
manually from local TV listings.