Hi Richard,
I’m not exactly shure about the hd pro as I’m using DL Extreme, but probably it’s pretty the same. For analog output your possibilities are to go component (3 bnc-connectors) or composite (all information on 1 bnc connector). S-video isn’t possible. So probably you will have to use the composite output.
additionally if your tv-set doesn’t have composite inputs (the yellow chinch connectors) you will need 2 cheap adapters. one which is bnc-male-2-chinch-male, and one chinch-2-scart.
if you’re not shure which connector on your decklink is used for composite output, check out the connection-diagramm pdf which is downloadable at blackmagic-design’s website. if I remember correctly it should be the Y-connector. (There should be a option in your DL control panel to choose between Composite and Component Output, Sorry I’m on the Windows side, so I don’t know exacty where you have to look for at the mac…)
I hope this makes sense to you…
andreas