tv_validate_file(1p)
Validate that a file contains valid xmltv data.
tv_validate_file --help
tv_validate_grabber [--dtd-file <dtdfile>] <file>
--dtd <dtdfile> Use the specified file as the xmltv dtd instead of downloading it from the web.
10 releases since Debian 4.0 (Etch); the text changed 8 times.