Personally tested in Canada with no VPN
TVPad 4 5.066FW
Cantonese app/港粵網路電視 (v2.054) - Live tv works, VOD works
BETV Plus (v4) - Live tv works, VOD works
Taiwan TV (v1.32/1.34) - Live tv works
Storm TV (v3.5) - Live TV/VOD broken (L4120)
Storm TV (v3.7) - Live TV/VOD works
Based on what I'm seeing, it seems like the manufacturers were/are moving their backend servers.