FFMPEG Interlace Deinterlace

[nightshadow36]

Hi.

Not sure what its called, its one or the other interlace or deinterlace.
Anyways I am transcoding to h264 for iptv and the output i have is stright lines on movemet.

I know there is an option of yadif with ffmpeg and that fixes the problem but with many streams that uses up alot of cpu resorces.
I found that buy scaling to 720:288 fixes the problem. But on a large TV the quality is bad.

the norm is 720:480 or 720:576 what scale can i use that is close to 720:480 or 720:576 that fixes the interlace problem.

720:288 fixes it
what would be the scale close to 720:480 / 720:576 with out interlace problems?
Thank you.