Need Help Converting 480i TS File To MKV With Handbrake

[twinfami]

I'm trying to convert all of my VHS backups to use on my Plex drive to save space as they were originally ripped with my Hauppauge HD-PVR. They are 480i TS files running at 29.97fps. Every time I try to convert them to MKV with Handbrake, the conversion to 480p looks way off(most are wrestling tapes, so they aren't supposed to look slower).

Any advice of how to convert to MKV but still keep the frame rate and interlaced video?

Trying to use bff in the extra options and crossing my fingers.....

[videobruger]

MKVToolnix.