Azimuth Elevation Calculator
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1

 
Dish Network. | Dish Network on 110W | Polish TV on 118.7W |
Dish network is made up of several satellites, including 119W, 129W, 110W and 61.5W all covering the continental US. 

One advantage of Dish Network is that, unlike DirecTV US, they have several HD channels in Ku Band that can be received on a regular SeaTel 4004 without the need for a fancy Ka-Ku-Ka triode feed on the antenna. 
1m +
85cm
60cm
US LNB
Circular
LO 11250 MHz
SeaTel
127444-1
SAT 119W
FREQ 1178
BAUD 20000
RHCP
FEC 7/8
NID 1004
SAT 129W
FREQ 1266
BAUD 20000
RHCP
FEC AUTO
NID 1008
SAT 110W
FREQ 1178
Baud 20000
RHCP
FEC 7/8
NID 1006
SAT 61.5W
FREQ 1266
BAUD 20000
RHCP
FEC AUTO
NID 1002
The footprint of 110W extends well into the Caribbean about as far as St Maarten, but you would most likely need a 1.5m antenna to reach Antigua and beyond.

If one does not plan to go too far south in the Windward islands, it could be possible to stay on one satellite in continental US and out into the Caribbean, without switching LNBs or receivers.

I would appreciate any real world input from yachts using Dish network in the eastern Caribbean. 

On the other end of the spectrum, it looks quite promising for coverage in the Alaska Inside Passage, with a 1.5m antenna.
1.2m    1.0m     85cm (coverage footprints are approximate, especially near edge of footprint)
Click on Map
Az:
El:
Channel Freq GLA10500 Tp Pol Channel   Baud Mod FEC
9888 11928 1428 15 RHCP Baby TV DVB-S 20000 QPSK 3/4
9793 11728 1228 2 LHCP Euronews DVB-S 20000 QPSK 3/4
9883 12124 1624 28 LHCP POLSAT2 DVB-S 20000 QPSK 3/4
9884 12124 1624 28 LHCP ITVN DVB-S 20000 QPSK 3/4
9885 12155 1655 30 LHCP TVN 24 DVB-S 20000 QPSK 3/4
9886 11819 1319 8 LHCP RELIG DVB-S 20000 QPSK 3/4
9887 12094 1594 26 LHCP KINO EUROPA DVB-S 20000 QPSK 3/4
GLA LNB 10500 LO.
SAT 119W
FREQ 1624
BAUD 20000
TONE OFF
VOLT LHCP
FEC 3/4
NID 0000
1.0m - 4004 
Click on Map
Az:
El: