IPTV, OTT and DTH reach viewers through different access networks. IPTV usually relies on managed IP delivery; OTT reaches apps and web players over the wider internet; DTH distributes broadcast signals through satellite delivery. A complete architecture often combines several approaches.
Before specifying encoders, middleware or player interfaces, define channel counts, resolutions, conditional-access requirements, latency budgets, supported devices and available internet or satellite capacity. Those choices shape the distribution topology and infrastructure costs.
Consider end-to-end monitoring, entitlement management, EPG data, multi-bitrate encoding, storage, copyright requirements, geo-access rules and client telemetry. Match the distribution protocol to the operational use case rather than selecting it based on a trend.
For networks that operate in Nepal, support for local access conditions, practical field troubleshooting and cost-aware redundancy can be as important as the codec itself.