what comes next (Are you out there bibster?)

[Roobeedoo]

P TD FH CB (found GR as an answer, WHY?!!)
NY, GF, EM, MD (found SBH again WHY?!!)
need these if poss please:-
1. M,M,L,J
2. D,N,O,S
3.A,T,G,C
4.W,H,S,H
5.D,R,M,F
6.A,C,E,M
7. S,M,L,OS (thought these were clothes sizing but surely XL is next).

[ladyalex]

7 xos is next (extra out size)

[Bushwhacker]

2. A (for August) D,N,O,S are the months working back from December

[cancross]

1. Matthew, Mark, Luke, John - so, Acts?

[cancross]

3. Aries (The Ram)
Taurus (The Bull)
Gemini (The Twins)
Cancer (The Crab)
next is ...
Leo (The Lion)

[Dilbert53]

5. "S" Do Re Me Far Soh

[MatydaLover]

4 looks like R for Richard ...

1066-1087 William I
1087-1100 William II
1100-1135 Henry I
1135-1154 Stephen
1154-1189 Henry II
1189-1199 Richard I
1199-1216 John

[MatydaLover]

I think your SBH might be Spring Bank Holiday ... it follows on from New Year, Good Friday ... yes, denfinitely that's it.