On Tue, 21 Aug 2007 10:32:03 -0700, RHF wrote:
This HDTV Antenna-Rotor Combo
Claims to have Coveage of Channels 2-79
HDTV ANTENNA = http://cgi.ebay.com/_W0QQitemZ260150283040
A-Neutronics, Inc. Model# AV-891 - Specifications*
· Frequency Range: 40~860MHz
· TV CHANNELS: 2-79
· Antenna Height: ~21" width: ~16"
....
This HDTV Antenna-Rotor Combo also claims
http://cgi.ebay.com/_W0QQitemZ250155800238
Frequency : 45 - 860 MHz
Channels : VHF 2-13 UHF 21-69

A quarter-wavelength on channel 2 is roughly 1.5m or about 60". Any
antenna whose largest dimension is 21" is going to be very much a
compromise on VHF.

"Up to 50 miles", kinda suggests that if the VHF station is operating from
a 2,000-foot mountain, you're on a hill too, there are no noisy
computers in your house, and the atmospherics are just right, you might
get a snowy picture. I would suggest that in "real life" 10-15 miles
might be a better estimate, at least for VHF.