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

### Instruction:
What is the average share at 8:00 p.m., and an 18-49 of 1.3/4 with an air date of April 4, 2008?

### Inputs:
table_name: table, columns: ['Air Date', 'Timeslot', 'Rating', 'Share', '18-49', 'Viewers', 'Weekly Rank']

### Response:
SELECT AVG Share FROM table WHERE Timeslot = 8:00 p.m. AND 18-49 = 1.3/4 AND Air Date = april 4, 2008