Polaroid HLM3232 AUTO TUNER HELP

In trying to save some money, we recently disconnected our Directv cable service to try and go with indoor antenna hookup. As this worked for our daughter in her apartment duplex with a perfectly clear picture; unfortunately for us all we're receiving is fuzz / no signal. We tried a digital converter box after first trying the indoor antenna and both did not work. I already missed NFL playoffs and Championships are coming up this weekend...what to do!!!??? Any assistance will be appreciated since I've probably read over 50 pages of online discussions.

Also wondering why I can't get in to the HDTV submenu from the Menu. As soon as I tab over to HDTV it just disappears back to the blank TV screen, all the other tabs work fine. TV was working fine with Directv, now I simply have a blank screen with no signal. Thanks, LM!!

Yes, I tried both connections and changing the input as well as in the TV menu set-up. Both connections just show the fuzzy screen with the no signal in the top right hand corner of the TV screen. The TV will go through the channel search mode only when set to Antenna; however when I connect it to the the HDTV/Air I can't get to the HDTV submenu. I can tab through video, audio and setup only.