I Bought the hdmi adapter I was told I needed. It worked, for a second and then it flashes on and off static. Someone told me Apple TV would help. Is that true? Would it help me display my A1186 tower too? thank you so much for your help.
iMac, iOS 9.1
the fact that the tv is a "smart" tv is irrelevant, when it has a hdmi port it's just a mother display for the computers point of view
and from the tv's point of view it's just connected to an input source like a DVD Player or sat box
if the iMac has a resolution the tv does not support that could be the problem I would go into system preferences and display and click gather windows and set it to extend rather then mirror and adjust the resolution of the tv
or for troubleshooting trying another tv
If you get an Apple TV and your Mac is compatible, you can use AirPlay to send you Mac's screen to your TV. See Use AirPlay to display video from your Mac on an HDTV - Apple Support
How do I use my smart tv as a display from my iMac?
