I have acquired my late fathers, TV/ radio/ record player. I am hoping someone could tell me more about this vintage piece.
It is in working order, and I enjoyed playing records on it as a kid.
I am considering selling it or storing it. Would it get much? Would it be looked after better if sold to a collector? Appreciate some advice.

From my observation, there isn't a big demand for 3-in-1 units. They appear on eBay from time to time -- more so lately. Some fetch less than $100, many don't attract a single bid.

Here's a recent example:

http://tinyurl.com/bola3tu.

The Astor Devon TV model range dates from the mid 1960's. To accurately describe your particular model I'll need a model number. This is easily done by looking at the back panel. If it is missing, it is also printed on back of the metal TV chassis. The model number will be something like D31G/5A-BX. Yours will probably be different, but the format is similar.

As GTC has said, value is highly variable. Mostly the 3in1's don't have much value due to their size but are still worthy of preservation where possible. Depending on how attached you are to your Father's Devon you may be better off hanging on to it providing you can store it safely and in a dry environment. If you can find a collector who has room for it and wants to keep it intact then that would also be a good outcome.