afaik we don't know how much Attenborough is payed, but that is a 'job' where other folks could narrate the same script, commenting on the fantastic film shots, and provide similar entertainment and educational value ... its just down to the tonality/clarity/enthusiasm of their voice, being appealing.
[Think if we had (Richard burton, Audrey Hepburn), Morgan freeman, Connery, ... narrating, however we need to beware of voice overexposure and viewer fatigue ... him again.]
- very different to Radio 4 today political interview with Boris, or Marcos De sautoy/brian cox/Schama's expertise, on a documentary.
The horse bolted with equal prize money at wimbledon etc. ... was it last year, the womens final had more viewers because the male final intersected wiith a football match.
BBC director , lord hall, getting out now, apparently..