Hello Katy, and thank you for the question. In order to connect your Martin dual wireless Mic setup for Karaoke to your HDTV you would need one of the full-fledged Karaoke machines that actually has the Video out jack to connect to your TV. Most of the lesser priced ones have small screens built into them, but they do not display on your TV. The one below (albeit a bit pricey) will work and have good sound quality as well as the video out to connect to your TV:
I was also able to find a lesser priced unit that has two Mic Inputs (your Martin system only requires ONE microphone Input jack- since the wireless receiver only needs one to plug into). This one has a small built in screen and also AV Out jacks to connect to a TV. It's much lower in price than the Voco-Pro unit above, and for casual use should work just fine:
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Nice to hear from you!
In the world of iPhone apps and Apple TV is there a cheaper option than buying external hard ware?
Hi there and good morning! While there is an IOS App for Karaoke (at the link below), there is no way to use your Wireless Microphone system with the app- as there's simply no interface on either Apple TV or any iPhone to allow a connection to it. The Apple App simply uses the microphone built into the iPhone. Then you would need an Apple display port adapter to connect the phone to the TV.
If you choose to go that route, here is the link to the App:
Additionally, you would need to choose the display port adapter for your specific iPhone (many HDTV's do not have the VGA port required however):
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