sweetpie - you very much doubt the cm (which cm would this be?) is putting on a nature programme - on what do you base this?
you say your dc are at a nursery so i'm not sure really why this thread is even relevant to you tbh...
Most nurseries/schools do have tvs and some (shock,horror) even use laptops and large screens for children to watch programmes and listen to/dance to music.
you don't have a tv, your choice, but you can't cocoon your child for ever and there are worse things in life than a bit of tv once in a while.
you say you don't mind a babysitter using the tv sometimes, then why not a self employed childminder working from her own home, running her own business?
If you don't wish to use a childminder then don't, there are plenty of parents who do and are not as narrow minded as you appear to be. I take my minded children out every single day to various groups, local places such as farms, library etc and to the park. a little bit of tv is sometimes a necessity as we work alone and can't be everything all the time.
as for changing beds and hovering, ha ha, I barely have time to have a cup of tea or go for a wee. I might stick the washing in if I have a baby who sleeps for a while, or even sit down to read the paper/look at emails but the thought of a cm upstairs doing a full house clean while she has children lined up watching tv for hours - very, very unlikely 