Here in Denver, Comcast (The only game in town) just simply puts the channels on and leaves it at that. Those with Digital cable usually get a notice the messages area within a few days (Sometimes a week or two) anouncing the addition.
THE ONLY time this
DID NOT happen was when
Altitude was added to the lineup. This is because Comcast used the opportunity to reshuffle the entire lineup and one of the moves was to move
AMC, which had been on channel 25, to channel 64 (Where it is now). This was done to accomondate
Altitude on channel 25 since
FSN Rocky Mountain was (And still is today) on channel 26.
Everybody & their mother anticipated this move since it occured on opening night of the Denver Nuggets basketball season.
They also made some lineup other changes as well in that move.
That's it from here.
Cheers