Multiple cables are represented by a single line for simplicity. Blue cables are, as usual, wildcard types. not shown yet: double camera setup w/computer-controlled switch, carpet, radar/sonar.
WF112F are full-range speakers. WF112SB are subwoofers. WF112M are monitors.
LD=laserdisc player. Blue is CAT5 twisted pair. Green is S-video or VGA. It is still not decided whether we will use 5 LDs, as shown, or only 3.