Yes, I was in class 5 when I start playing with the dish
![Stick out tongue :P :P](https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f61b.png)
by my mistake I move the LNB on my dish and then on all channels I was having dots. I hate analog receivers just because of those dots. With the passage of time my hobby is not like it was few years ago but still sometimes I spend my time by fixing and doing minor adjustments and improvements in my dish.