Rearranging the letters of 'Jonathan Ross' (Chat show host & "personality") gives:
A rat's johnson.
(by Andy Goode by hand) (2003)
Other related anagrams without their own page:
"Friday Night With Jonathan Ross Television Show" -> "Hot jovial wit or shyster who is daft 'n' nigh insane?" (by Judy Miller using Anagram Genius) (2006) (pending approval)
"Friday Night With Jonathan Ross Television Show" -> "Worthy show to his toadish infernal vain jesting." (by Judy Miller using Anagram Genius) (2006) (pending approval)
"Friday Night With Jonathan Ross Television Show" -> "Vain annoying twit jester. Shoo! Sad whorish filth!" (by Judy Miller using Anagram Genius) (2006) (pending approval)
"Sir Michael Parkinson" -> "~is chairman - likes porn." (by Mick Tully using Anagram Genius) (2007) (pending approval)
"Sir Michael Parkinson" -> "A slim chairperson, kin!" (by Mick Tully using Anagram Genius) (2007) (pending approval)