Hello Calomax,
Welcome to the forum. Resetting PVR will not lose your recordings, but hopefully refresh your box. It picks up bugs, plus data errors from broadcasters from time to time. But you could also undelete all your schedules via my recordings/planned menu or better still retune all channels, but remember to make a note of schedules as these are cleared when retuning. If you reset box, you will also need to re-enter app passwords and adjust any menu settings, but very easy to do. Becomes a regular feature with pvrs! John L