Hello,
The tutorial with the Arduino program, and the code that ships on the TinyTV kits is the same, so this tutorial shouldn't drastically change functionality if uploaded correctly (by selecting TinyScreen+ and the correct COM# in the Arduino IDE):
https://learn.tinycircuits.com/Kits/Tiny-Video-Program/If you loaded the Tiny Video Player program rather than the TinyTV kit program, you can change this in the settings menu once you solve the "Card not found" error:
https://learn.tinycircuits.com/Kits/TinyTV-Tutorial/It looks like you wrote in an email form as well with the same problem, but I will repeat myself here for anyone else having the same issue:
Often when this error comes up, the MicroSD and Audio TinyShield is not plugged into the TinyScreen+ board fully. Do not press with excessive force, but I recommend taking the sd card out, then taking the TinyShield out, and then trying to re-seat the board into the TinyScreen+ connector with even pressure. Test again before closing the TinyTV enclosure.
Best,
Réna