The Sunday Night Rock Show is a Burgh House Media Production for Saint FM Community Radio.
It has its own website at http://media.burghhouse.com/sundaynightrockshow.htm.
This blog lists the tracks that were played on the show. So if you heard the programme and heard something you liked but didn't catch the track's name, maybe you can find it here. If not, try emailing firstname.lastname@example.org and I'll see if I can help.
Use the same email if you want to request a track to be played. No promises but I'll try!
And please note: The Sunday Night Rock Show airs every second week!