Best indoor FM antenna, your experience.

+1 yogiboy 
There is no FM antenna that has a range of 50 to 80 miles. You'll be wasting your time till the cows come home!

Yes, wish I could do an outdoor antenna with a rotor...

Unless you are in an urban area w lots of high-rise buildings, the main issues are height and directionality. So get your antenna as high as possible and have some means of orienting/re-orienting it to get the best reception for different stations. If you in a city w lots of tall buildings, multi-path can make getting good reception hit or miss at best, impossible at worst.

donvito101

There is no FM antenna that has a range of 50 to 80 miles.

To be clear, that's certainly the case with an indoor antenna, which is what I think you might be referring to here.  But with a good outdoor antenna system, it's definitely possible to receive high quality FM at 60+ miles.

*L* Well, none...but 'what works' seems to be 'site specific', based on the above responses.
Try anything, but keep the receipt. ;)