Portal in the header or a leading grand summary is a possibility here. You can design a many rows tall portal and define it to "slide up", "resize enclosing part" to remove the wasted space created by unused portal rows.
You can also use Save as PDF in a script to append two different reports into the same file. This may also be an option.
Can you spell out the relationships between your three tables?
Seems like you have
but due to possibly using the same Design name and/or image in more than one Episode, you may have some many to many relationships here that require Join tables.
Oops, just remembered that objects won't slide/shrink in a header part, but they should slide inside a leading grand summary...