NTSC analog, AKA what you'd get in an old VCR.

However, I honestly wouldn't bother buying anything because Rogers is slowly deleting all analog channels (even on basic cable), and pretty soon you're not going to be able to watch anything without a Rogers box (and no, QAM and ATSC tuners won't help you).

Rogers does offer a "free" digital box that will give you basic digital cable. You might want to look into that avenue.