They pick up the actual RF Channel if over the air which is converted to a ASI signal (WHKY sends ASI by fiber to them).
Then they set the decoder to pull the required program channel (Normally program #3 for the xx.1 channel, don't ask me to even get into why #3 is the first channel. It's like when you parents told you "that's the way it is")
This is then converted to a SDI signal (Term "Serial Digital" not "Standard Def") This contains NO NO NO PSIP data.
All the signals for the market are then mixed together and sent to the master dish or directv site.
When they uplink the 100's / 1000's of channels to the bird they create a PSIP of there own for everything (Like CNN, Fox News, HBO, and Locals). With the data coming from Tribune Media.
Due to the fact the Dish and Direct receivers do not look at over the air PSIP at all for guide data. (the receivers that scan, do look to resolve OTA channel # / Virtual channel # only because the FCC did require the receiver to do this)
Now the data problem.
WHKY like many other stations just like Bob told you "Our guide data is a compilation of local input and data from the respective network merged together by Decisionmark -Titan TV". (Decisionmark -Titan TV is the data we then push to the OTA transmitters PSIP generator. Remember I told you we are required by the FCC for it to be correct. This data is the only data I would come close to trusting)
Decisionmark -Titan TV information is then sent to Tribune Media to "Hand Input" to there system. We can not load data from the station end like we can with Decisionmark -Titan TV. We have NO control at the Tribune Media level to fix data ourselves. We have to call, or Email them when it does not work like it should. This is even harder for a non major network station (Not ABC, CBS, FOX, and NBC)
Let's get back to Direct / Dish PSIP.
Dish/Direct provide a pull log for Tribune to deliver the guide data for all the channels they uplink, plus all the over the air channels they know about. This information is requested by the Dish/Direct folks, so if they fail to request data for a over the air channel Tribune will only send what was requested and that channel will go without guide data on the home receiver.
I know this was a long post, but this is the way things are. TV stations only have full control of the signal OTA. Cable, Sat, Telco...what ever...... they repackage the signal, and we have to work with them. I many cases it takes a little time to make everything work, and it may break again without us doing anything to It. Then we have to fix it again. I guess what I am trying to tell you that when I called Dish Network today about guide data this was WHKY's #1 item with Dish Network. I have no thoughts it was even close to #1 on there list of things to do. If you Dish Network watchers want the guide data provided for you, Email Dish Network. The subscribers to the service have by consumer laws more pull then the TV stations have with the service providers.
Also I looked when I got home tonight. My two Dish Network receivers are SD only. No antenna input for OTA. I will see what I can do to get and HD one to look at for the house.