I use NewsBlur in conjunction with NewsReel for Apple TV. Some websites have high-res icons while others still have only 16x16, which looks pretty bad on a big screen.
I would love to see custom icons for feeds, so I can specify a URL or upload an image and have it apply to my feed.
This has been requested a few times in the past though my reason for requesting is slightly different:
https://getsatisfaction.com/newsblur/topics/favicons_rendered_wrong
https://getsatisfaction.com/newsblur/topics/set-custom-favicon-for-each-feed
Thanks.