At 55 foot antenna height install a Winegard HD7698P antenna with a Antennas Direct CPA-19 preamp aimed at about 185 degree magnetic compass direction.
Here is how to aim antennas ,
http://www.kyes.com/antenna/pointing/pointing.html.
At the 55 foot antenna height , the 1 VHF high band channel CHCH 11 will be received and All the UHF channels you are requesting and then some will be received.
A possible exception is CHCJ 35 and WPXJ 23.
CHCJ and WPXJ , are spread far apart and are weak signal strengths.
CHCJ 35 and WPXJ 23 might be received with the HD7698P antenna aimed at about 185 degree magnetic compass direction.
(WXXI is too weak and will not be received reliably no matter what antenna is used.)
As always the antenna aim direction can be adjusted so as to have the best reception.
Most Digital Tv's have a signal strength meter and some Digital Tv's also have a signal quality meter.
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If have to choose Between CHCJ and WPXJ to receive with the HD7698P antenna then choose CHCJ and aim the HD7698P antenna more toward CHCJ , aim the HD7698P antenna at about 209 degree magnetic compass direction.
And then for the reception of WPXJ , aim a Channel Master CM4228HD with a Antennas Direct CPA-19 preamp at about 157 degree magnetic compass direction.
-->Yes you can try the DB4e in places of the CM4228HD.<--
The 2 antennas systems , the HD7698P antenna and witch ever UHF antenna works , Will Not be connected together on to 1 coax.
The 2 antenna system Will Be Separate all the way to the Tv/s location/s.
A Remote control A/B antenna switch will be connected at each Tv location.
http://www.mcmelectronics.com. #32-4425.
http://www.saveandreplay.com , has the same Remote control A/B antenna switch.
A/B antenna switching is Channel Surfing Friendly , press the button on the hand held remote control , change antennas and keep on channel surfing.
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If 1 Tv is connected use no splitter/s.
If 2 Tv's are connected use a , HFS-2D , splitter/s in each Single or Separate antenna system.
If 3 Tv's are connected use a HFS-3D , splitter/s in each Single or Separate antenna system.
Buy the HFS splitters and antennas and etc. ,
http://www.solidsignal.com , or ,
http://www.hollandelectronics.com , or ,
http://www.saveandreplay.com , or ,
http://www.trentondistributors.com
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How will the Antenna/s be installed at 55 feet antenna height , how will you get the antenna up that high??