Intellivision II Shakes (jumps vertically) with DLP TV — Help!!!

Hello Old School Gamers!

I have an Intellivision II that shakes (jumps vertically) with my Samsung Model HL61A750A1F 61-Inch DLP TV.
I hook up the Intellivision II to the TV to the ANT IN (75Ω Coaxial connector for Air/Cable Network) with a RCA Female to F-Type Coax Male Adapter.

Troubleshooting Notes:
I used different RCA & video video game RF cables.
I have tried with two other Intellivision II consoles and it still shakes.
I also hooked it up with a Vintage Gaming TV/Computer Antenna VHF Switch Box
The Intellivision II consoles work fine on other televisions (HDTV, plasma, tube, etc.)

I don't care about it working on others TVs, I want it to work on the Samsung Model HL61A750A1F in my living room.
Does anyone have an other ideas on how to stop the shaking?

Thanks!!!
Ed

I've never been able to get my Inty II to work on anything other than a CRT TV. I'm not sure why. Looks like you've had more luck than me!