Hi, I am using an iMac with latest version of iOS. I have bought an external hard drive to put content on from my computer and have read to format with disk utility and erase the hard drive and reformat as Mac OS extended (journaled). I would also like to be able to access some of the content on my smart TV, my photos and home movies etc but the smart TV (LG) does not seem to be able to read the hard drive once I have reformatted. it. Is there a different format I should be using.