Yes, a C Band dish works for millions and millions and even up to a billions of US properties and Communication's; job's, contracts, and actually something in law called "Carriage" in America is the standard for the World over, what has been in America's since radar began (and Long distance International). So today, most people are not told, it is all only available already, for everybody in the USA, on just such a system using channels listing.
I watch my C Band dish daily, and am able to receive the 10-100 channels I watch throughout the week (radio is digital also on my Big ugly dish). But I cannot receive the channels I watch any other way (like some channels), using a local antenna gets me another channel either. In fact, too many channels are already here that I find like they are not new to you; but they are the same ones the same way as others pay for them via another typical small dish system. The commercial qualities of a certain or number of commercial only channels already is being paid with something called advertising to all cable companies for the pick me, me, me altitude. No bandwidth is available in the US from any carrier that wants to change it.
The changes to US Communications Law and the allotted freq. for each Carrier has had some impact on tv video channel 3/4 modulations and the am radio (analog) and radar's newest high power slot and airports communicators; together has been a great effort, today considered communications the world over; so to the FCC has been given an A in the past; as it continues today to be what everybody in the rest of the world follows. Economics of the requirements in an entire industry were ADDITIONAL; that is the ability to add to the existing equipment; and make the reception of better for their viewers. This it has done. Now's equipment that broadcasts the free tv signals did not change; the consumer paid for it by today buying a hdtv. Same thing in all HDTV equipment, the industry already existed and it is called The Broadcast Industry.