Samsung HL-R5066W - Manual (Page 18)

Connections
English - 18
Connecting VHF and UHF Antennas
If you do not have a cable system, you will need to connect an antenna to your TV.
Antennas with 75-ohm Round Leads
If your antenna looks like this: it has 75-ohm round leads.
1 Plug the antenna lead into
the ANT 2 IN (AIR) on the
rear panel of your TV.
BP68-00546A-01(018~029) 9/28/05 11:47 AM Page 18