I just wanted to follow up to see if you need anything else or if your husband was able to get the support he needed via the phone?
Im afraid I dont know what number you are trying to call, however can assist you further here by typing if you prefer.
With regard to the fault do you know what part is at fault? It sounds like the screen panel has failed which is by far the most expensive part within the TV, however the fault on the TV panel was likely been caused by a build up of condensation inside the housing (which should not have happened), resulting in a short across the terminals around the flat panel screen.
I appreciate the condensation dissipated, but by this time the damage had been done, so you also need to address the faulty seal in the housing which resulted in condensation forming inside and the reason why the screen failed in the first place.
With out the engineer confirming they have identified the fault in the housing, I would be reluctant to proceed with repair, as the likelihood is the same fault will reoccur in 18 months time.