Symptom: initially perfect Freeview reception that eventually (usually after 5-10 minutes) degrades into a stuttery, blocky mess.
Case for TV (a 2011-ish LG):
- I've had similar problems at the last three places I've lived (all rented within the same suburb, Mt Eden, within the past year or so). Freeview website reports 'very likely' coverage.
- The TV reports that signal strength and signal quality are both 100% while the picture is good, but quality dives to 50% or below intermittently (while the picture is breaking up)
- Reception on the analogue channels is decent (not perfect) and never varies
- TV recently developed some other worrying symptoms (turning itself off after being on for around ten minutes), though this has now stopped.
- I changed the Freeview transmitter frequency the TV was tuned to with absolutely no change in symptoms (100/100 dropping to 100/50 after a while)
Case for aerial
- The aerial cable is a bit of a mess, and I gather that previous tenants have used Sky
- Neighbour at my last house reported that his reception was also crap, meaning I haven't suspected the TV up til now
- Analogue reception isn't perfect (it's noisy on TV3 especially)
- I've never really heard of a TV developing this problem, and Google didn't suggest that it's a common issue. TV is only about 2.5 years old.
Any thoughts? I'm pretty close to finally ordering a DVB-T card for my HTPC to turn it into a DVR and stop using the TV's tuner, but it'll be mighty frustrating if it turns out the signal was the culprit all along.