Yes the 2016 is an updated version of some of their older yagi designs cut for today's frequencies. Also 2018 and 2020 models.
The data sheets seem to be ambiguous. In the introduction, they say up to "51" but in the 'Dimensions' section it says up to 69. See http://support.channelmaster.com/attachments/token/g4icbkwkatexxbl/?name=CM20xx+Series+Data+Sheet.pdf
If the UHF Yagis were indeed rescaled, they'd be expected to show a marked drop-off in gain above channel 51. These do not but seem to show gain increasing up through ch 60. If they were indeed scaled for up to 51, one would have to ask why data above 51 is even given. Just sayin'...
The "e" versions of the Antennas Direct bowties were rescaled to optimize performance over the previous, older bowties. Customers kept asking for the ability to independently aim the panels, so we added it for those who want to give it a shot. There is, of course, no free lunch, so YMMV.
Re: The basic RCA antenna in Post 6629. As part of my official duties here, I've been doing some comparisons of small, indoor passive and amplified antennas at stores like Walmart and Target to see how they actually perform, both on OTA signals and with controlled signals against some of our established products and some concept products. The $10 RCA 112F shown was about in the middle of the pack of a bunch of mediocre antennas but it actually was the best of the bunch in the Walmart offerings for the inexpensive passive antennas. Still crunching the numbers for the Target stuff.Edited by ADTech - 11/15/13 at 10:52am