@th @unnick The Archive is back up, so here's my favorite example, from the manual for the Jupiter Ace (a failed British microcomputer that ran Forth instead of BASIC).
If you're not familiar with old microcomputers, the mentioned "television" is the standard television you would plug the computer into. Monitors are expensive and $200 was all the home market could support, so most micros of the '80s shipped with a composite output rather than a monitor.
@curtmack @unnick while most of the home micros used slashed-zero, there are some older display terminals had slashed-oh.