I know that Agilent has an LED, but I like the slimness of my Tek 1.5&1GHz probes of 15 years ago. With .2 inch width spacing, you can place all 4 probe heads on headers directly in under an inch of PCB area, While you can have the signal pin and GND 0.1inch spaced apart. No wiring to PCB.
They also had these plastic 'hair comb' tips which allowed you to flawlessly tap any single TQFP pin perfectly without any adjacent shorting and hold it there.