Lots of broken recordings since x-mas 2017

[ultima01]

Hallo,

I've noticed lots of broken recordings since X-mas.
The reccordings contain garbled frames in the lower half (see screenshots), these defects extend to the entire recording, reoccurring every 2-5 minutes.
The Screenshot are just examples of films i didn't delete yet: Iron Man 2, Sherlock Holmes, Salt.
IIRC there were garbled frames in these recordings,too:
It follows, The Sorcerer's Apprentice, Demolition Man.

Effected Channels: uk film 4, uk Horror, Itv2-Itv4.
Anhang 8125
Anhang 8126
Anhang 8127
Anhang 8128

[ultima01]

There's still broken recordings:
- Warm bodies - UK Film 4
- Byzantium . UK Film 4
- Speed 2 - cruise control - UK Channel 4

Since x-mas, yet no corrupt files on:
- US This TV
- UK BBC