I don't know where you live, but if you google 'crt television repair' you will find there are still companies out there who can have a look at your telly. If your telly has suddenly gone pink then it sounds like a simple fault rather than wear and tear.
You could join this forum and ask your question about hdmi adopters etc.
Vintage Television and Video - UK Vintage Radio Repair and Restoration Discussion Forum
It is full of knowledgable people who will give you the benefit of their experience.