Linking an existing show to a broadcastdate

Summary describing the defect.

Steps to Reproduce

1. Move to broadcast-dates
2. Go to a date and chose "link episode/show"
3. Type in a name

Expected Result

When I type in the name of a show, shows that include the name would appear in a dropdown below or something similar.

Actual Result

1. When I type in the name of a show nothing happens.
2. Also the input-field is broader than the appearing text which "pretends to have a smaller window".

Logs & configuration

I was logged in as superadmin

Environment

Firefox / Ubuntu