He might have gotten everything else wrong, but if he got this one thing right - alone and by itself - then hes with Jesus right now.
God tells us in Romans (chapter 10) ... ... if you confess with your mouth the Lord Jesus and believe in your heart that God has raised Him from the dead, you will be saved. For with the heart one believes unto righteousness, and with the mouth confession is made unto salvation.
Thanks for putting things into perspective. I hated his telethons - they were often like freak shows, but he brought the message of salvation to the entire world through his TV empire. And many good ministries (and some bad) were brought to us via TBN.