Can hd pixelation happen because of zwave

I have had FIOS tv for a while and I am just noticing pixelation of some HD channels. Not entirely sure it is because of the zwave but it happens on only some HD channels. I have noticed it on some of the broadcast tv channels on our FIOS. Cable in house is good, when FIOS was installed they ran a lot of new cable. This was years ago. Any cable I ran I ran the heavy stuff.

Could zwave be a cause or it’s something else. In the past 6 months I have started installing zwave modules and I am sure I installed them correctly.

It is highly(!) unlikely that the weak 908MHz(US) signal of Z-Wave devices could interfere with the FiOS optical or cable signal(inside a well shielded cable).

Call FiOS.