mplexid	sourceid	frequency	modulation	sistandard	visible
1	2	567000000	qam_256	atsc	1
2	2	573000000	qam_256	atsc	1
3	2	579000000	qam_256	atsc	1
4	2	585000000	qam_256	atsc	1
5	2	693000000	qam_256	atsc	1