I just started the same project (picked up the Transformer and GI Joe sets as part of the Prime Day festivities).

I’d be really interested to know what software/settings is/are being used.

The best I’ve done so far is in Handbrake (Filters: {detelecine: default, interlace detection: default, deintrelace: decomb default, denoise: NLmeans light animation, sharpen: LapSharp ultralight animation, deblock: 5}, Video: {Codec: H.265, Framerate: 24 Constant Framerate, Encoder Preset: slow, Encoder Tune: Grain, Constant Quality 18 RF}), it’s better, but it doesn’t look nearly as good as henryperu77’s encode.