woohoo ... yes ! Thanks, that fixed the 1080i/50 synch problem. The video quickly recovers from the source error and continues to play "normally".
I've now added that command to /storage/.config/autostart.shGreat Thanks
I refurbished a bit my antenna system and installed an LTE filter so now I have a clean&strong DVB-T signal but I am certainly going to add this to autostart.sh, no errors for the last hour.....
kszaq also mpeg2 take a long time to recover from errors, maybe this parameter can help /sys/module/amvdec_mpeg12/parameters/error_frame_skip_level ?