A:AnswerNo you cant. Comcast has licensing restrictions to prevent that from happening. I tried doing it to, screen came up saying you cant airplay/screen mirror from the app to tv
A:AnswerYes, this is currently suported by Netflix, Hulu and many others. If it seems to not be working properly, try an Apple Tv and then just airplay your media through that
A:AnswerI used this with my Ipad Air. It worked fine about the first 6 times I used it, and then just stopped working. Too expensive to work for such a short period of time.
A:AnswerNot sure why you'd want to view your iPad on your external camera screen as it has a lower resolution than your iPad's screen. Unless you are using the very first iPad produced (which had no camera), you are able to view the camera from all models of an iPad on a monitor, projector, etc.
A:AnswerThe iOS version on your iPhone / iPad doesn't matter. In fact, I just tested this before writing this answer to your question, and I am running iOS version 12.0.1 and viewed it on a HD computer monitor via a HDMI cable. It also does not matter what you are doing (gaming, watching videos [online or offline], viewing your camera, taking a video with your iPhone, etc.) there is no noticeable latency from the iPhone to the monitor. I have attached a photo of this test as I composed this answer. Also, keep in mind that you are able to keep power (for charging iPhone / iPad battery) connected while doing all this via the lightning connector next to the HDMI port.
A:AnswerIf your printer has WiFi, you should be able to download the Canon app for your phone and the print things through the app. The app will Bluetooth link to the canon printer.