I didn't initially find this page until after I posted. I hope this covers everything I was/am looking for. If you have further suggestions though please comment.
https://learn.tinycircuits.com/Processors/TinyScreen+_Setup_Tutorial/

Hello Tiny Circuts users/enthusiasts,

I'm new to this whole thing so if my question is inane, it probably is. Per subject line I'd like to reformat/reprogram a TinyScreen+ to work as a TinyTV.

Context: I had recently bought the DIY TinyTV Kit and in assembling it had cracked and damaged the TinyScreen+ that came with the kit. I ordered a new TinyScreen+ thinking it was only a matter of replacing the damaged component. Today I replaced the screen except now I cannot seem to get it to read from the SD card, it will only boot up the Flappy Birdz game. Again, I am new to this and I cannot seem to connect to the TinyScreen+ from my PC to investigate or try to replace the program with the TinyTV code.

Your wisdom and advice are much appreciated because I could not find adequate answers elsewhere in the forum or tutorials. Thank you.

Regards,
1DoctorNosFeraTu