Are they coming down bare on the outside of the wall? or Are they in a conduit of some sort?
Please, whatever you do, do not just drill a hole in the brick pout the cables through. This is what Rogers/Bell do and its horrible.
You want some sort of PVC conduit entering the house through the cinder block. On the outside you want either a PVC box (4 X 4) or a PVC LB.
This will allow you to seal the have a proper sealed entry into the house AND allow for more cables added in the future.
When the cables are routed though the PVC, you should use duct seal to seal up the air gap that is in the conduit. Remaining space between the cables and the PVC Pipe. Plasticine duct seal goes on the outside of the house not the inside.
For about 8 cables, you will need at least a 1 inch conduit. Don't go out buying a 10 foot section. I should have some that I can give you. I normally use 1/2 or 3/4 but I should have a long enough piece of 1 inch left over. Next size up would be 1-1/4.
I'll see if I can find some pics of some of my previous jobs and post them. Plus, you got my number so just call.
EDIT
@mimico_polak
This is what you want to create with a PVC LB or PVC junction box.
Take note of the spray foam insultation that goes on the outside of the PVC pipe between the PVC pipe and the building material.
Also, the PVC box/LB should have 2 drip holes drilled at the bottom to let any water drip out of the box.
If the cables are not in a PVC conduit right now and will be going into the box directly, make an access hole for the cables at the
bottom of the box. Feeding them from the bottom, then into the house. This will eliminate the chance of any water entering the box. You do not want a hole from the top, unless there is another PVC pipe coming in with a proper sealed connection.
If you need help with non invasive surgery procedure of your house give this guy a call.