Get a local identifier
Start with the city or area where the feed is intended to be seen. A US affiliate often appears under a call sign on its website or in the station schedule. A regional UK feed may use the place name instead. The programme provider can shorten either label. Ask for the specific feed or call sign if the only name shown is the network.
In the PBS directory entry, the feed filter helps you find a named station or subchannel. BBC One has separately recorded regional feeds. Open the publisher schedule from the station record and check the intended edition for today.
Pick a programme that can distinguish the feeds
Choose a regional bulletin, local public affairs show or other programme likely to differ between two nearby markets. If both schedules carry the same national item at the same time, it will tell you little about which regional feed is mapped.
| Evidence | Example of the question it answers |
|---|---|
| Station ID or call sign | Which outlet carries this item in this market? |
| Feed label and zone | Which schedule and clock should I use? |
| One local programme | Does this guide entry match the feed I actually received? |
| Verified XMLTV channel ID | Which value should my player map to the playlist entry? |
Make one mapping change
Save the current mapping and adjust just the test station. Refresh the guide and check the next two programme times against the broadcaster. If they match but the picture still comes from another region, send both observations to support. The guide mapping and playback source can be changed independently.