A second guide source can fill a genuine coverage gap, but it can also introduce duplicate programmes and inconsistent station mappings. Assign a clear source to each channel where the reader allows it. Treat a fallback as a deliberate choice rather than importing every available feed.
Compare station editions
A source covering the wrong regional edition can look almost correct until local news or a time-shifted programme appears. Match the station edition before comparing the amount of metadata. More descriptions do not compensate for the wrong schedule.
Avoid duplicate authority
If both sources map to the same channel, find out whether the reader merges, prioritizes or replaces entries. That behavior affects overlap and update results. Keep notes about the chosen source so future corrections are understandable.
Protect guide credentials
A second source may have separate access details and usage terms. Do not assume one subscription authorizes redistribution of another guide. Store both URLs privately if they contain tokens.
A practical sequence
0 of 3 steps completed on this page.
An example to work through
A household might use one guide for its main lineup and another for a missing regional station. Importing both guides into every channel is unnecessary and can create conflicts.
Questions about this topic
Will two sources always improve accuracy?
No. They can disagree or duplicate records.
Can I redistribute a guide because it is XML?
No. File format does not determine usage rights.
