Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
What is the sum of Year, when Role is "himself", and when Notes is "celebrity guest alongside yg family"?

### Inputs:
table_name: table, columns: ['Year', 'Title', 'Role', 'Network', 'Notes']

### Response:
SELECT SUM Year FROM table WHERE Role = himself AND Notes = celebrity guest alongside yg family