Steve M wrote:

(snip)

There are a few of these cross-platform interchanges across the Tube
network. From memory...

Oxford Circus (Victoria to Bakerloo, NB and SB)
Stockwell (Northern to Victoria, NB and SB)
Highbury and Islington (NR to Victoria, NB and SB)

^^^ Only cross platform interchange between the Victoria line and the
Great Northern line to/from Moorgate - aka the Northern City Line
(trains currently operated First Capital Connect). There's no
cross-platform interchange with the North London Line (aka Silverlink
Metro).

Baker Street (Bakerloo to Jubilee, NB and SB)
Euston (Northern Bank Branch to Victoria, NB and SB)
Finsbury Park (Piccadilly to Victoria, NB and SB)
Barons Court (District to Piccadilly, EB and WB)
Finchley Road (Metropolitan to Jubilee, NB and SB)
Kennington (Northern Bank to Northern CX, NB and SB)
Mile End (Central to District, EB and WB)

Are there any others I've missed (excluding the obvious joint running
lines such as round the Circle)?

Cheers

Steve M