dvbv5-scan needs which channel file?

[David Liontooth <lionteeth@cogweb.net>]

Greetings --

How do you actually use dvbv5-scan? It seems to require some kind of 
input file but there is no man page and the --help screen doesn't say 
anything about it.

Could we document this? I tried

$ dvbv5-scan
Usage: dvbv5-scan [OPTION...] <initial file>
scan DVB services using the channel file

What is "the channel file"? Maybe the channels.conf file? (I created 
mine using "w_scan -ft -A3 -X -cUS -o7 -a /dev/dvb/adapter0/")

$ dvbv5-scan /etc/channels.conf
ERROR key/value without a channel group while parsing line 1 of 
/etc/channels.conf

So it knows what it wants -- but what is it? Or is this a matter of dvb 
versions, and my /etc/channels.conf is in the older format?

Very mysterious.

Cheers,
David