---------------------
Name | Description
------------------------------------------------------------
+--------------|--------------------------------------------
TVH_URL_API | URL like http://localhost:9981/api
TVH_USER | username for HTTP API
TVH_PASS | password for HTTP API
---------
`TVH_USER=admin TVH_PASS=admin ./tvh-json.py exportcls dvb_mux_dvbs`
+
`TVH_USER=admin TVH_PASS=admin ./tvh-json.py export 6dbdb849bd8eae9c1fecf684f773baca > a.json`
+
`TVH_USER=admin TVH_PASS=admin ./tvh-json.py import 6dbdb849bd8eae9c1fecf684f773baca < a.json`