Do a batch encode with handbrake, you should be able to queue it up and have it do it's thing over night. The ATV preset is good, but it will give you two audio tracks (AAC and AC3) which you don't need since your audio is mono, also it wont deinterlace which you need.
I notice you have 2 audio tracks, are they duplicates?
I've made a preset based on ATV2, with only an AAC audio track and deinterlacing. You can get it
here. Put it in Library/ApplicationSupport/Handbrake (replace your own), then start Handbrake, you'll see it in the side bar (toggle presets).