Yes very good , thanks.
Going higher does not receive any more analog or digital channels.
I recommend a Heavy Duty Long Lasting Winegard HD7082P antenna mounted above the roof aimed at about 240 degree magnetic compass direction.
Here is how to aim antennas ,
http://www.kyes.com/antenna/pointing/pointing.html.
Some common roof type antenna mounts are , tripod mount , chimney mount , eave mount.
The HD7082P antenna will supply signal to 4 Tv's.
For one Tv connection use no splitter.
For 2 Tv's connected use a 2 way splitter.
For 3 Tv's connected use a 3 way splitter.
For 4 Tv's connected use a 4 way splitter.
Here are some places to buy antennas and etc. ,
http://www.saveandreplay.com ,
http://www.trentondistributors.com ,
http://www.canadapost.ca/shopper ,
http://www.amazon.ca ,
http://www.solidsignal.com ,
http://www.winegarddirect.com ,
http://www.amazon.com