Check the individual programme listing
Freesat’s current Live Restart FAQ tells viewers to look for the feature’s special icon beside the programme in the guide. Start with that episode or event, not a general claim that the box supports restart. A programme elsewhere in the schedule offering the option does not establish support for the one currently playing.
Follow the action offered for that item
The documented route is selecting the programme and choosing Watch from Start when it is available. If the option is absent, record that observation rather than searching for a hidden rewind switch that must apply to all channels. The FAQ says channels manage restart availability, so the platform cannot be treated as supplying a universal archive of every live programme.
Distinguish the receiving paths
The Freesat manual identifies Watch from Start among features requiring internet access. Ordinary satellite reception can therefore work while this separate route fails. Check whether the programme offers restart first, then whether the receiver is connected. A strong satellite signal alone does not prove the application handoff or broadband route is working.
Keep a useful fallback separate
If you have missed the beginning, inspect a legitimate complete replay or another broadcast where offered. A replay may appear later and may have different access features, so do not promise it from a guide tile alone. If an advertised restart option fails, report the programme, time, icon and displayed error. That identifies a different problem from a programme that was never marked for restart.
Questions, answered
Does every programme on a restart-capable box offer restart?
No. Freesat describes channel-managed programme availability.
Does a working satellite picture establish internet restart connectivity?
No. The manual identifies it as an internet-dependent feature.