Attack of the Twelve-year-old Monoxide Detector
Okay. Turns out the capture card I have is not actually compatible with the PS3, since the PS3's signal output is always using HDCP; the only reason I can get a signal from it at all is because I'm running it through a splitter that cuts that out (but, as you can see, has glitches with the video frequently cutting out). For future entries, I will be running the system over a Component output and piping that through an HDMI converter.