Mark doing a double shift today as he did his usual 5pm-7pm slot as well.
I think these may be short-term changes as presenters isolate/move to off-air positions. Gamal did 10-5 a few weekends ago and Samantha did 11-1.30 then 5-7 on a Friday. This is happening in many shift-work positions around the country, not just in TV news, I would imagine!