Videohub as matrix outputs blinking

Hello all,

I Have installed in a Sports Bar
(1) Cable box to BMD micro HDMI to SDI
(8) DirecTv boxes:
(4) Using $30 Analog to HDMI into BMD micro HDMI to SDI converters.
(4) Using $20 HDMI 1X2 Splitter into BMD micro HDMI to SDI.
All going to a 20X20 Videohub running 6.4. Short runs 30 to 130ft into $20 China SDI to HDMI converters to random brands and sizes of TVs.

Problem is Every month for a few days and only the ESPN channels on all 8 the DirecTvs start Blinking (Screen randomly goes black for 4 seconds) on the TVs. Even with all the outputs on one source the TVs will blink randomly and the display on the Videohub stays solid?

Interesting when watching the affected channel accessing the Guide or Menu will Blink also. Change the channel and it stops.

I have tried Resetting DirecTv boxes, adding HDMI splitter, switching to Analog output, 720 and 1080, and every TV setting I can access.

Thanks for your time.
Sven

We're currently experiencing this same issue with an almost identical setup - we're using analog. Certain channels (ESPN ch.206, Fox Sports South ch.649, and a couple other channels) are causing jittering and then a short blackout.

Did you ever find a fix?

I presume you have appropriate authorisation to do this distribution ( a commercial subscription/license ) If you do perhaps you should speak to DirecTV ? Maybe they have a suggestion for correct commercial distribution of their channels.

We're a casino, we have a business account with DirecTV.

After comparing another system setup in exactly the same way in our showroom, we noticed a difference. The place experiencing the issue uses a Smart Videohub 40x40 and the showroom (no issues) uses a Smart Videohub 12G 40x40.

The difference there may be relevant - I'm still trying to figure out why. All cabling, terminations, and adapters are the same.

I will still call DirecTV about the issue to see if they have any insight.

I was thinking perhaps DirecTV is occasionally using Macrovision for some sports programming , so you may wish to ask if they are.