It's not if you/'re right or not, it's that you're being undermined. That shouldn't be happening. I don't agree with DH's parenting all the time but I save my criticisms and coments until DS has gone to sleep and we can talk about different ways to tackle things - and different things I can do too.

Compromise is always a good thing. I don't like constant TV but it's non-stop Thomas today as I'm ill and DH is out. I don't want DS playing on computers but DH finds a tractor programme so it's late afternoon before dinner ONLY rather than before bedtime.

Strict routines can be detrimental but a "this at that time only" routine can work. We don't have a strict routine but DS knows that things happen in a certain order and if he wants something then it happens around a certain time - going out for a walk when the sun is out and it isn't raining, bath and bed a half-hour or so after dinner... he doesn't argue about it because that's what happens. It's not good to be rigid but it is good to have a flow to the day, and one your DH can help in too. Junk food just after lunch only, wii after 4 but before dinner... can you discuss it with your DH and see if he'll go along with that?