How many members watch "Only Connect" on TV (BBC2)? One of the games the teams are asked to answer if to find four groups of four somehow-related words or things from a 4 by 4 wall of 16 - for example four words that express happiness, or four names that contain a foodstuff.  It's made more complex by the categories being somewhat obscure, and by there being more than four items that fit a category - those extre combinations ruled out because some of the items fit multiple categories and those that multi-fit have to be in the "right" place because of the need for four in some other group which might otherwiser be incomplete.

Only Connect uses ancient Egyptian hyroglyphs to name questions ... and is played by two teams.   Here is my first wall for today (a second is prepared and may follow) - the "Lion" wall.  Expect me to reject some apparent good conbinations with "no, that's not it" as you find four perfectly good linked items, but one or more have to be held back for another category.

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The British Railways lion on wheel emblem, designed by Abram Games. Photo by Nottsexminer [CC BY-SA 2.0] via flickr and via the beauty of Transport

 
Battersby, Bere Alston, Bodmin General, Coombe Junction

All locations where through trains stop and reverse, before continuing along a different line of route to that which they arrived on.

 

Yes - that is exactly the first connection I had ...

 
Severn Beach, Blue Anchor, Carbis Bay, Dawlish Warren  - All directly on the coast near a beach

 

Yes ... but so is Corkicle ... good connection but not the group I have, nor a connection I made.

 
Blue Anchor, Dawlish Warren, Hayle and St Germans have (had?) camping coaches.

 

Indeed - but have other(s) had/ve camping coaches too

 
Ainsdale, Carbis Bay, Corkickle and Dawlish Warren are coastal stations that are also 'edge of suburbia' stations (to at least a degree):

Ainsdale on edge of Southport
Carbis Bay on edge of St Ives
Corkickle on edge of Whitehaven
Dawlish Warren on edge of Dawlish

 
Ravenglass
Corkickle
Coombe Junction
Battersby

All junctions with mineral railways

 
Ainsdale, Corkickle, Ravenglass and Llanbister Road were all LMS stations before nationalisation.

 
"Only Connect" walls make for a poor quiz on a forum such as the Coffee Shop.   They are fun to watch on TV or to play on your laptop ... but here, they encourage follow ups in which members make connections which are good and valid, but do not fit into the grid.  My apologies for putting up something which encouraged guesses that turned out to be  the wrong ones , and my thanks and admiration for the brave souls who hazarded a guess.

The base data I had for the Lion wall was

Next station is "saint"
Severn Beach
Hayle
Carbis Bay
Corkickle

Proposed for closure by Beeching but still with us
Lelant
Sandplace
Llanbister Road
Ainsdale

Camping Coaches
Blue Anchor
St Germans
Dawlish Warren
Ravenglass

Stations where trains reverse midjourney
Bere Alston
Coombe Junction
Battersby
Bodmin General

I will - intentionally - waste the water wall.  Post and answer.

Stations with rail building works
York
Derby
Swindon
Brighton

Stations on TransWilts
Chippenham
Melksham
Trowbridge
Westbury

Stations with trains to Edinburgh
Plymouth
Kings Cross
Tweedbank
North Berwick

Terminal Stations reopened
Okehampton
Leven
Alloa
Ashington

All of which goes to show that for almost any idea / feature, there is a precedent / it's done or been done elsewhere