Looks like I'm a little late to the thread. You didn't mention if you're on a PC or Mac. There is a cheap solution that provides excellent results for home use. The Hauppauge 1196 WinTV-HVR-1250 PCI-E x1 TV Tuner 1196 PCI board for $65 on Amazon. You can usually find better deals elsewhere. This device can take basically any analog signal and turn it into an .avi file. Then you can use something like Nero to convert from .avi to a DVD. This also works with turntable audio, but you'll need to strip the blank video signal off of it. Newer versions of RealPlayer have built in converters for this sort of thing.

Good Luck