Hello and welcome!
We don't store anything called a "callsign".
If you're wanting to mess with channel names then take a look at the Channels table displayName column.
Regards,
mm
New Zealand
No.is there any place in the database that stores whether the channel is broadcast in high definition
No.and whether it's a network affiliate
No.is there any place in the database that stores whether the channel is broadcast in high definition
No.and whether it's a network affiliate