Hmmm.... I have the XM2 (GL2). So not sure about the XL1. In my XM2 I have to go through camcorders menu and activate "analog in"...

How about using the TV Simulator filter with Detail, Aperture, Interlacing, Scan Phasing and Static hard to the left, Line Sync and Vertical Synch hard right and phosphorescence at about 0.5? Then add in an HSL Adjust filter set at max saturation. I dunno, looked kinda 1980's VHS to me. Certainly looked crappy!