Bright flashing multicoloured stars?

GarlicBread

Been watching them for maybe 2 years on and off. There is perhaps 4 or 5 of them and they can be seen easily most nights. Somtimes one or two of them look as though they are low orbit strobe lights, but since they are always in the same place and move with the stars i assume they are stars.

Heres an example - http://www.youtube.com/watch?v=yqiMluu89hE

Does anyone know what they are?, and if they are stars why they are flashing different colours. You can get a great view of one of them around 11-12pm and can clearly see it going from red to green etc.

Anyone got a clue what they are?

Cú Giobach

These are stars and planets.
When a bright star/planet is low in the sky, the light from it has to pass through more of the atmosphere causing it to "twinkle" more than if high in the sky,
also refraction of the light rays is what causes the colour changes. If you watch these stars/planets through the night as they rise higher above the horiizon,
you will notice the "twinkling" decrease and colour changes gradually stop.
At the moment during the early night you can see;
Venus is very bright in the W before the sky gets completely dark.
Then Jupiter putting on a great display low in the ESE (this gets everyones attention).
Antares (a bright,red star) to the south west.
Capella twinkling to the north.
A bit later Arcturus sets in the W and gives a lovely show.
Hope that enlightened you.

GarlicBread

Cheers for answer. Was driving me nuts for ages.