[RFI] 40M TVI problem

[SERGE BERTUZZO]

Hello everyone. While I am new to this list I have been reading the posts for quite some time. Lots of great information. 

I primarily only operate CW/digital modes on HF on 80-10 meters. I use a TA33JR for 20-15-10 meters and an Alpha Delta antenna f(inverted vee configuartion) for 80/40 meters. 

I subscribe to a satelliet TV service. I notice interference on 40M when I operate with >40 watts. I have no interference on any of the other bands including 80M. On 40 M, I have used chokes on all input/outputs to the receiver as well as on the main cable feed from the satellite dish. I found that by putting (2 chokes - one near the receiver and one right at the cable outlet to the room) That I was able to eliminate most of the interference.
 
My problem is that I seem to be unable to remove the last remaind bit of herring bone TVI when I operate on 40 Meters. I also have a choke on the output from the satellite receiver to the television set. If I reduce power to 20-25 watts I am able to eliminate the last bit of herring bone interference.
 
Any assistance/guidance would be greatly appreciated. Thank you all in advance. 
Regards,
Serge
VA3SB