How do I record the output from my LZX system?

A video capture device can record the output of your system. We recommend devices which can capture Component/YPbPr video for the highest quality recordings.
We’ve had great results using the Black Magic Intensity Shuttle.

Just a quick question; with the release of the Memory Palace, is this still the best option or are there other alternatives worth considering?

I’ve been using the cheapest capture card I could find with good results (on Linux Ubuntu). It’s this one, or one very similar: