Here is the single important URL which cannot be found on the internet, must be sniffed on wire: http://update.upwitheaway.info/1509M_S9M_INTER_SAT/upgrade.cfg

If you care about the entire request:

GET /1509M_S9M_INTER_SAT/upgrade.cfg HTTP/1.1
Accept: */*
Accept-Language: en-us
Accept-Encoding: *
User-Agent: DQVOD
Host: update.upwitheaway.info
Cache-Control: no-cache
Connection: Keep-alive

HTTP/1.1 200 OK
Server: nginx/1.14.2
Date: Sat, 31 Aug 2019 00:57:51 GMT
Content-Type: application/octet-stream
Content-Length: 170
Last-Modified: Thu, 13 Dec 2018 02:31:01 GMT
Connection: keep-alive
ETag: "5c11c465-aa"
Accept-Ranges: bytes

{"software":[{"version": "V8.11.07"},{"fileName": "S9M_intersat.bin"},{"msg": "Add Net Upgrade"}],"database": [{"version": "null"},{"fileName": "null"},{"msg": "null"}]}.

Unfortunately, it's eCos, so no Linux shell on your TV :(