A:AnswerHello, Thank you for your question.
This TV is totally able to work with most nowadays streaming devices connected via HDMI, the apple TV included.
Ruben O. - Insignia support.
A:AnswerYes, if you go to media settings, it asks you what interval to play the slideshow at. You can click thru them while the slideshow is playing or you can just click thru each one without using the slideshow.
A:AnswerHi Guad610,
Yes, this TV includes a method to see a digital channel's signal strength. This is in the on screen Channel menu, select the Channel Strength option.
Arely R. - Insignia Support