I don't know much about flat screens but on normal Tv's you just hook up the red yellow and white cords into the back of the tv. If your flat screen doesnt have a red yello white input, it only has a cable screwwy thingy than you can buy a cord that fits into the cable screwwy thing and it has red white and yellow inputs on the cord. if you dont have either than I have no idea how your supposed to connect anything to it.

Nintendo sells a component cable that is the best (Red, Green, BLUE, Red White) for the N64 or you can use the SVIDEO or Composite cable. Component is the best type Svideo or S-VHS is second best Composite or A/V (yellow, red, white) is next or the worst kind. HDMI is for high definition stuff like Blu-Ray and HD Cable/HD Sattelite. the Nintendo 64 does not work with HDMI. Modern flat panel TVs may not work the a "screw connection" also known as coax or RF and if it does, don't use it. Use the S-video or A/V instead. http://store.nintendo.com/webapp/wcs/stores/servlet/ProductDisplay?productId=357&currency=USD&catalogId=10001&tranId=0&lastAction=setCurr&storeId=10001&languageId=-1&categoryId=14753&ddkey=http:SetCurrencyPreference http://store.nintendo.com/webapp/wcs/stores/servlet/ProductDisplay?productId=80344&currency=USD&catalogId=10001&tranId=0&lastAction=setCurr&storeId=10001&languageId=-1&categoryId=14753&ddkey=http:SetCurrencyPreference http://store.nintendo.com/webapp/wcs/stores/servlet/ChooseView?catalogId=10001&storeId=10001&langId=-1&currency=USD&ignoreCrumbs=Y&crumb1=&crumb1Ignore=&crumb2=&crumb2Ignore=&crumb3=&crumb3Ignore=&translateFrom=ÈÉÇ&translateTo=EEC&usrSearchText=&searchText=&selSrchType=&page=&view=&productId=&categoryId=X&lastAction=ChooseView&orderTotal=null&tranId=0&jktranid=&rpComment=&dropOff=