He didn't say if he wanted full-frame capture. He just wanted to know how to view and record video. I'm quite aware that all the 68K and early PPC macs sucked at proper video capture.
Sounds to me like "it won't work unless you get a NuBus card first.", which if taken too seriously means locating two hard to find and very expensive parts.
What I'm trying to say is IT WILL WORK, I HAVE DONE IT, BUT DON'T EXPECT MIRACLES.