You are in a really good location for reception of both the DC and Baltimore markets.
I think teleview recommended the CM4228HD because it is usable on VHF. His list of steps are very well thought out.
I would add if you have any problems with reception for 7, 9, 11, or 13, VHF antenna(s) can be added to the CM4228HD. A Y10-7-13 pointed at DC, possibly angled to point over the trees would help with 7 and 9. A Y5-7-13 or a Y10-7-13 pointed at Baltimore would help with 11 and 13, again possibly angled to point over the trees. (VHF is nice, it will “bend” over obstacles better than UHF).
If you end up needing a VHF antenna for 7 and 9 and a VHF antenna for 11 and 13, merge the two with a channel 12 jointenna from the channel master store.
http://www.channelmasterstore.com/JO..._p/cm-0582.htm Then merge the VHF signals from the jointenna with the CM4228HD using a UVSJ.
Your signals are so strong that there is a good chance the CM4228HD will get you VHF stations without extra work. If not, separate VHF antennas can be added after you get the CM4228HD installed following teleview’s recommendations.
There is a lot of overlap in the shows on Fox, CW, and MyN from both markets; they all share a lot of the same programing during non-prime time hours, just split into different parts of their schedules. So if you miss big bang on My 24, you can catch it on My 20 later in the evening.