Listed/published 'tongue/pin weight' is 'DRY' weight based on the 'Listed/published' DRY trailer weight.
(500# dry tongue for 5000# trailer equals a DRY 10% tongue weight etc)
Dry tongue/pin weight is for a basically empty trailer.....(lot of mfg. fine print will state 'Numbers are an Average' for such & such model
Look at data plate on trailer for the GVWR.
Use the dry tongue/pin weight percentage to figure WET tongue/pin weight based on GVWR
Can your TV handle that WET tongue/pin weight?
If so........good to go
IF 'marginal' might be OK if you do NOT load trailer up