Images displaying third-party ownership or branding not deleted after two tries

According to the image guide (https://help.imdb.com/article/contribution/images-videos/image-guidelines/G27LPBQZA7EAZGJW?ref_=helpms_helpart_inline#) "Images displaying third-party ownership or branding, such as watermarks." are not allowed.* Therefore, I tried to delete these two pictures from two different series: https://www.imdb.com/title/tt0057750/mediaviewer/rm314287361/ and https://www.imdb.com/title/tt0066696/mediaviewer/rm3087626240/, but my contributions were declined. Was this in error or does IMDb have a different idea of third-party ownership and/or branding than I do? These are the submission numbers: #250809-002203-220202 #250809-002240-208002 #250815-175958-048402 #250815-180027-107702 *both pictures had a watermark from tv channel TV Land, which started in 1996, while these two series are from the 60's and 70's, a fact I pointed out in all contributions.