Take a look at the tracklisting of the Roots - Best of CD on somewhere like their website or Amazon. If you listen to those you'll have most of the more famous Show of Hands songs. Actually I'll paste them here.

Disc: 1
1. Roots
2. Are We Alright
3. Exile
4. Country Life
5. Widecombe Fair
6. The Falmouth Packet / Haul Away Joe
7. Santiago
8. Armadas
9. The Blue Cockade
10. Crow on the Cradle
11. The Preacher
12. Cousin Jack
13. Cold Frontier
14. Hard Shoulder
15. Captains
16. The Galway Farmer

Disc: 2
1. Columbus (Didn't Find America)
2. You're Mine
3. The Blind Fiddler
4. The Setting / Mary From Dungloe
5. The Bristol Slaver
6. Port Isaac
7. The Train / Blackwaterside
8. Be Lucky
9. Longdog
10. The Keeper
11. The Downeaster 'Alexa'
12. The Oak
13. Innocents' Song / Gwithian
14. Tall Ships

I think my favourite of those has to be Tall Ships, which on Roots you get in its 22 minute extended version.

Someone who has only ever listened to a couple of Show of Hands songs ever will probably be along later to tell you why you shouldn't like them.