The following article provides a detailed explanation of the PauseLiveTV feature, purpose, usage and configuration. This feature is complementary to the Playlist size feature and share some requirements.
This feature requires a backend configuration, as well a playback request parameter.

How it works

With the configuration of the absolute playlist size, by default the previous ad marker is not used for ad insertion. This is required to prevent any unnecessary requests to the adServer. By enabling/allowing the ad replacement for "past ad breaks", will use these ad markers and create an ad replacement on session start.

Setup and configuration

In order to replace the previous ad marker, it is required to configure both channel features Timeshift Window and Playlist Size.

Playback request

The query request parameter replaceBehind=true will trigger an ad replacement for previous ad markers.