Ok, just spent a way too much time looking for the official icons/images for facebook instagram, reddit and twitter so just storing these links here not legal for TV but usage guidlelines on each of the sites
reddit https://www.redditinc.com/brand
twitter: https://about.twitter.com/en/who-we-are/brand-toolkit
inbstagram: https://en.facebookbrand.com/instagram/assets/instagram?audience=instagram-landing
Facebook: https://en.facebookbrand.com/facebookapp/assets/f-logo?audience=landing