You got it wrong.
Only gathering knowledge by yourself will benefit you.
[And your attitude is not right for your intention.]
No, actually, I did not get it wrong. I asked a relatively simple question in a forum that has a very specific purpose.
When you go into an auto parts store and say that your windshield wipers are no longer working, and you have the make, model and year of the car available, the person behind the counter doesn't tell you to go take a look around the store, nor does he tell you to go home and do some research. He has the requisite knowledge to say "You need a new wiper motor" and he looks up the part number, gets it, and sells it to the guy.
There are obviously quite a lot of people looking to expand their recording capacity. There are X receivers capable of taking an external drive. A list of those receivers, and hard drives that users here have found compatible, would be a big help to visitor of this forum. That list is not readily available. That's why I looked at the beginning, to see if the list was updated. It isn't. I looked through 40+ posts for a recent post. There wasn't one. That's when I posted to ask my question.
If you are looking to supplement your income by providing consulting services, you should consider stating this in plain English. There's nothing too shameful about it considering these economic times.
I shouldn't need to spend hours and hours researching a $150 decision. A $15,000 decision? Sure. Maybe even a $1,500 decision. But a $150 decision should require a simple answer.
You keep the answer to yourself, buddy. It's fine...if it makes you feel superior and proud, you go right ahead and puff out your chest. I've already ordered a drive.