i bought my HD DVR long back
in the past the clarity of HD and SD channels are very good.
but in recent times the clarity is lost too much in sd channels
and some clarity lose in HD channels
do i need to change any settings to my STB
please give me complete info and explanation.
i am very thankful to you people.
i am giving screen shots of my device info.please guide me
thank you very much
https://i.imgur.com/Io5yWux.jpg
https://i.imgur.com/ekv53f6.jpg
https://i.imgur.com/Trruspj.jpg
https://i.imgur.com/nmFVoIo.jpg