the 201 panel on our 33 2006 the switches are the breaker as well, the only fuses we have (12v) are for main power in 125amp and 100amp for the windlass, both located near the engine battery. if the switch is lit then there must be power to it, may have a bad connection at the back.
the shower drain may also have a push button in the shower area that has to be held in for it to pump, for the 12v tv it would depend on which fuse they have wired it to. ours comes on with the aux power socket fuse.
they're set by switching off and then back on.
may be worth opening the panel out to see if power is coming out of the relevant connectors