On the slip of paper that lists the episodes of season 4 that comes in the ALF dvd set Disk 3 is as follows:

13. It's My Party
14. Make 'Em Laugh
15. Love on the Rocks
16. True Colors
17 Gimmee That Old Time Religion I Gotta Be Me
18 Future's So Bright, I Gotta Wear Shades When I'm 64

And Disc 4 is:
18. When I'm 64
20. Mr. Sandman
21. Stayin' Alive
22. Hungry Like the Wolf
23. I Gotta Be Me
24. Consider Me Gone

However, on the disks themselves I have Disk 3 is:

13. Future's So Bright, I Gotta Wear Shades
14. Love on the Rocks
15. True Colors
16. Gimmee That Old Time Religion
17 I Gotta Be Me
18 When I'm 64

And Disc 4 is:
18. When I'm 64
20. Mr. Sandman
21. Stayin' Alive
22. Hungry Like the Wolf
23. I Gotta Be Me
24. Consider Me Gone

The episodes When I'm 64 & I Gotta Be Me are duplicated and the episodes It's My Party & Make 'Em Laugh are missing altogether!

Did anyone else have this problem?

I am aware that 2 season 3 episodes also appear on the season 4 set but this is something else. I only bought this set a month ago and as it was released a few years ago I doubt whether Lions Gate would send me the correct dvd.

Don't have an answer, but would like to know an answer to this one as well.