[mythtv] Bug: Strange things happen if callsign field is not filledin

[Robert Kulagowski]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

> Perhaps the myth docs could add a sentence spelling that out for
> the dumbo's like me!  

Perhaps you can submit one?  I'm here in the US, so I'm not sure what
the issue actually is.

-----BEGIN PGP SIGNATURE-----
Version: PGPfreeware 7.0.3 for non-commercial use <http://www.pgp.com>

iQA/AwUBPn+Kc/c1NpCTlP0JEQLpnQCZAY6+cz4l293LjyAwqi7YCrZam9MAoJEJ
xeg2KvjfQPnx3FjsgB+n6iWk
=G1n3
-----END PGP SIGNATURE-----