Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_31528 ( "Episode no." real, "US Airdate" text, "US Total viewers" text, "UK Airdate" text, "UK Total viewers" text )

### Question ###
How many viewers in the UK did episode 50 have?

### Accurate SQL ###

SELECT "UK Total viewers" FROM table_31528 WHERE "Episode no." = '50'