[mythtv-users] Way out idea on watchingsame thinginmultiplerooms

[Johnny]

> There are hubs, switches, and routers.  Generally, hubs always
> transmit on all ports, switches direct packets based on ethernet
> hardware addresses (and multicast packets generally have a broadcast
> ethernet hardware address), and routers direct packets based on higher
> level logic.

Actually I think the distinction between a router and a switch is a
router can do NAT, which isn't what you need/want here.