atsc_epg -V (return code: 255)
atsc_epg: invalid option -- '-'
usage: atsc_epg [-a <n>] -f <frequency> [-p <period>] [-m <modulation>] [-t] [-h]
atsc_epg --help (return code: 255)
atsc_epg: invalid option -- '-'
usage: atsc_epg [-a <n>] -f <frequency> [-p <period>] [-m <modulation>] [-t] [-h]