The Lemonade Treatment

Which Doctor Who stories would you give the "lemonade treatment"?  That
is, make lemonades out of the lemon, which means to improve the taste or
quality, either by rewriting it or making a follow up story that makes
it look better.

Here's my list.  I'm just listing the stories now, but I might come back
later to explain how I'd fix each one, if I'm not busy on a secret
mission. ;-)

1st Doctor:
The Space Museum
Galaxy Four
The Gunfighters

2nd Doctor:
The Underwater Menace
Fury From the Deep
The Space Pirates

3rd Doctor:
The Mutants
The Time Monster

4th Doctor:
The Hand of Fear
Underworld
Nightmare of Eden

5th Doctor:
Time-Flight

6th Doctor:
The Twin Dilemma
Timelash

7th Doctor:
Delta and the Bannermen
The Happiness Patrol

8th Doctor:
Doctor Who

9th Doctor:
Rose

10th Doctor:
Fear Her

11th Doctor:
Vampires of Venice
The Wedding of River Song
THe Power of Three
Nightmare in Silver

12th Doctor:
In the Forest of the Night
Sleep No More
The Eaters of Light

13th Doctor:
The Battle of Ranskooor Av Kolos
Orphan 55
    Flux
Legend of the Sea Devils