Large LCD TVs with no RF Input?

[brickwall]

Hello,

Looking for advice on a reasonable large format LCD (36" to 42" range)

Have recently installed an antenna and RG6'd my old house in west end Toronto, Canada Had some good advice on another topic area on this forum.

Getting about 20 digital channels using a Tivax and an older Sony CRT. So far so good, as I just watch networks and play the odd DVD

Now want to get a new TV set. I'll give old one to my mother-in-law whose set went kaput in a lightning storm, a perfect reason to buy a new TV

Most new sets by Samsung in 36" + size range do not seem to have an RF input.

Somewhat more expensive sets (Sharp, Sony) do seem to have an RF input

What is best advice on:

1) converting RF to an HDMI connection (without buying another device or PVR, etc.)

2) another brand of set (ideally with ability for analog, as in Canada we are still on analog until 2011 and some stations are still only analog).

Thanks very much.