Lights&ballast

Hi to all
Iwould like to know if anybody is useing Electronic ballast?Do they mess up tv and satellite signals?Are they better than magn.ballast.If anybody knows anything about them please let me know.I'am thinking about buying one.
1000 bulbs has a good price on 400 watt ballast and I like to get one.
Any help would be a big help.

they work better and are cheeper to run then the old transformer type.

They also run at a lower temperature too so they are a good choice.

Thanks zandor you made up my mine for me.Thanks