[Scratch_Perry]

youtu.be 

Quite an understated on-screen farewell given 18 years service. I get the feeling if David didn't take it upon himself to come in and give her flowers, she wouldn't have got much else.

Very understated on-screen farewell.  Normally in these circumstances, they will show a compilation of their best - and in some cases not their best - moments during their years on the programme.

Though at least Alex did get the chance to say farewell to the viewers on the programme, because in cases where you leave to join the direct opposition - like she has - you are immediately removed from screen and deemed persona non grata.