Samsung HPR4252X-XAC - Manual (Page 22)

Connecting VHF and UHF Antennas
22
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 IN)
on the TV.
Use an antenna cable. (Sold Separately)
BN68-00835A-00(002~035) 4/15/05 7:14 PM Page 22