I also agree that only having a very small snack really helps with mealtimes, just enough to keep them going (e.g. tiny box of raisins, a quarter of a piece of fruit). TBH, if my LO ate an apple for a meal and only wanted a coupla bites of the actual 'meal', I would probably let that go as this is still enough to keep them going - a whole apple is about 2 - 4 servings of fruit for a LO (depending on their age / weight etc).
If my LO is not interested in a 'proper' meal these days, I make up what I call a 'snack plate' which is really just a name that we call it to make it sound more appealing. Basically, I put loads of different finger foods on a plate and try and make it look colourful and fun. She then eats it when we are having our 'meal' - I let her take up to an hour to eat as much as she wants (she is not a quick eater) and she is allowed to go and play for a bit, pop back and eat some more etc etc. After an hour, I just put the rest away or in the bin (by which time she has lost interest anyway). We find that she often eats a lot more than she might have done from the 'meal' and also she gets a lot of variety.
The sort of things I put on 'snack plate' are, for example: cut up pair or apple, cut up strawberries, organic 'animal' biscuits (wholemeal cookies made with grape juice instead of sugar), cut up or grated cheese, torn pieces of ham (and am going to try chicken this week - she has taken a while to get to 'like' meat), pieces of bread and butter, small bits of brocolli or a small tub of peas and sweetcorn, sometimes some crisps, a tub of fromage frais, sometimes small pieces of pizza or sausage, basically anything that I have to hand.
Not saying this will work for you, but it might be worth a try - saves you having to actually cook anything and you can always just put it back in the fridge with a cover and bring it out at next 'mealtime'.
HTH
OH, and Missy Lou - I also let LO eat in front of the telly - not supposed to be good for digestion (at least I have read that in women's magazines), and probably a bad habit all round, but you goot do what you gotta do. We have slowly been moving towards more meals together with music on in the background instead of TV - this seems to be going down quite well.