I am currently watching the new BBC adaptation of The Day of the Triffids. It's ok but they have made rather too many changes. It's ages since I read the book so I can't remember all the details but the original Triffids couldn't move very quickly, unlike the ones here. The original ones would kill a victim then patiently wait for it to decompose. They also couldn't reach out and pull people towards them. I never imagined them to look like angry Aloe Vera plants.
The book had slower pacing, which gave time for the characters to develop. They obviously decided to speed things up to make the adaptation more dramatic. The narration in the book helped create the atmosphere, making the events seem scarily plausible. Unfortunately this is lost in the tv version.
I can't remember the exact details of the original ending, so it doesn't matter that I'm posting this before the programme finishes.
Occasionally the programme felt like Aliens: The Vegetable Edition.