Starting from v 4.9.11 flussonic support for TV archive was added in Stalker MW.
Timeshift from flussonic is supported starting from Stalker MW v4.9.19.
Configuration steps:
In Stalker MW Admin interface > Storages > Add new Storage, set IP of flussonic server and set flussonic port.
Select option Storing content, Record TV, Flussonic DVR.
Storage
Channel
Flussonic
Flussonic Doc